Is this accurate?

Not quite. This is not an array; it's an object literal that contains nested object literals and arrays. The main issue here is that you are overwriting the keys of previous questions/answers with each new question/answer. You cannot have two properties with the same name in an object. Essentially, you've done something like this:

{ a: 'b', a: 'c' }

This will discard the value 'b' and set a to 'c'.

You may need to reconsider the structure so that the top-level element is an array:

var quizList = [
  {
    "question": "What's your favourite Color",
    "answers": [
         ["a","Blue","2"],
         ["b","Green","4"],
         ["c","Red","6"],
         ["d","Orange","8"],
      ]
   }, {
    "question": "What's your favourite Animal",
    "answers": [
         ["a","Dog","2"],
         ["b","Cat","4"],
         ["c","Caterpillar","6"],
         ["d","Donkey","8"],
     ]
  }
];

... and if so how would I access the different array elements?

You cannot "access" these array elements directly. They are data, not executable code. You need to write a program that uses this object as input and generates a <form> containing a series of <input> or <select> elements.

In my opinion, the most effective approach would look something like this:

let questionnaire = [{ 
  inquiry: "What is your favorite animal?",
  options: [
    { choice: "a", description: "Dogs", score: "4" },
    { choice: "b", description: "Cats", score: "3" },
    { choice: "c", description: "Birds", score: "2" },
    { choice: "d", description: "Fish", score: "1" },
  ]
}, { 
   /* additional question */
}];

It's worth mentioning that your questionnaire should be an array for optimal functionality.

This section is not correct:

"answers": {
     ["a","Dog","2"],
     ["b","Cat","4"],
     ["c","Caterpiller","6"],
     ["d","Donkey","8"],
 }

The key answers represents an object because of the use of curly braces ({}), therefore it should have a key and a value. Perhaps you meant to write this instead:

"answers": [
     ["a","Dog","2"],
     ["b","Cat","4"],
     ["c","Caterpiller","6"],
     ["d","Donkey","8"],
 ]

In this version, answers is now an array containing 4 nested arrays.

However, I suggest modifying it like this:

"answers": [{
         letter: "a",
         text: "Dog",
         value: "2"
     },
     //...etc
 ]

By structuring your options as objects rather than arrays, you can easily access the properties for each answer. Instead of:

var letter = someAnswer[0];       // is this the right index??

You can do this:

var letter = someAnswer.letter;   // now I know it's the correct one

This way, your code will be more manageable, eliminating the need to remember which index corresponds to each part of your answer.

Overall, I recommend something similar to this structure:

var quizList = [{
        question: "What is your favorite animal?",
        answers: [{ 
                 letter: "a",
                 text: "Dog",
                 value: "2"
            },
            // etc
        ]
    },
    // etc
];

Now, at the top level, quizList is an array of objects. Each object includes a question property and another property called answers, which is an array of objects with letter, text, and value attributes.

const quizList = {
            "questions":[

              {
                "question": "What is your preferred Color?",
                "answers": {
                               "a":{
                                     "text":"Blue",
                                     "point":"2"
                                   },
                                "b":{
                                     "text":"Green",
                                     "point":"4"
                                   },
                                "c":{
                                     "text":"Red",
                                     "point":"6"
                                   }
                                  "d":{
                                     "text":"Orange",
                                     "point":"8"
                                   }



                         }
               },
               {
                "question": "Which animal do you like best?",
                 "answers": {
                               "a":{
                                     "text":"Dog",
                                     "point":"2"
                                   },
                                "b":{
                                     "text":"Cat",
                                     "point":"4"
                                   },
                                "c":{
                                     "text":"Monkey",
                                     "point":"6"
                                   }
                                  "d":{
                                     "text":"Donkey",
                                     "point":"8"
                                   }



                         }
               }


          ]
    };

This information is presented in json format for easy access.