What is the syntax to parse a JSON multidimensional array into a ActionScript class for a multiple choice app?

This is how I currently have my JSON data file

{

"questions": [

{

"q": ["For Socrates, an unexamined life is a tragedy because it results in grievous harm to _____."],

"choices": ["A.the soul", "B.the body", "C.the state"],

"abc": [0]

},

]

QuestionBank.as FILE

package com.robertosborn {

import flash.events.EventDispatcher;

import flash.net.URLRequest;

import flash.net.URLLoader;

import flash.events.Event;

public class QuestionBank extends EventDispatcher {

private const JSON_URL:String = "data/questionsTEST.json";

private var jsonRequest:URLRequest;

private var jsonLoader:URLLoader;

private var questionArray:Array;

public function QuestionBank() {

questionArray = new Array();

loadJSON();

}

private function loadJSON():void {

jsonRequest = new URLRequest(JSON_URL);

jsonLoader = new URLLoader;

jsonLoader.addEventListener(Event.COMPLETE, jsonLoaded);

jsonLoader.load(jsonRequest);

}

private function jsonLoaded(e:Event):void {

var jsonData:Object = JSON.parse(e.target.data);

for each (var question:Object in jsonData.questions){

questionArray.push(question);

}

dispatchEvent(new Event(Event.COMPLETE));

}

public function buildBank():Array {

var b:Array = new Array();

var max:int = questionArray.length;

for(var i:int=0; i

b.push({q:questionArray[i].q, abc:questionArray[i].abc}); //HOW TO PARSE THE JSON DATA FROM ABOVE HERE

}

return b;

}

}

}

QuizGame.as File

package com.robertosborn {

import flash.display.MovieClip;

import flash.text.TextField;

import flash.display.SimpleButton;

import flash.events.Event;

import com.robertosborn.QuestionBank;

import flash.events.MouseEvent;

import flash.utils.setTimeout;

public class QuizGame extends MovieClip {

public var aBtn:SimpleButton;

public var bBtn:SimpleButton;

public var cBtn:SimpleButton;

public var questionText:TextField;

public var statusMsg:TextField;

private var questionBank:QuestionBank;

private var questionArray:Array;

private const questionMax:int = 5;

private var questionCount:int = 0;

private var currentAnswer:String;

private var currentScore:int = 0;

public function QuizGame() {

statusMsg.text = "";

questionArray = new Array();

questionBank = new QuestionBank();

questionBank.addEventListener(Event.COMPLETE, dataReady);

aBtn.addEventListener(MouseEvent.CLICK, aPressed);

bBtn.addEventListener(MouseEvent.CLICK, bPressed);

cBtn.addEventListener(MouseEvent.CLICK, cPressed);

}

private function dataReady(e:Event):void {

questionArray = questionBank.buildBank();

grabQuestion();

}

private function grabQuestion():void {

if(questionCount < questionMax) {

var max:int = questionArray.length-1;

var rq:int = Math.floor(Math.random() * (max - 0 + 1));

var ta:Array = questionArray.splice(rq, 1);

questionText.text = ta[0].q;

currentAnswer = ta[0].abc;

questionCount++;

} else {

gameOver();

}

}

private function gameOver():void {

statusMsg.text = currentScore+"/100 points";

questionText.text = "Game Over!";

}

private function aPressed(e:MouseEvent):void {

if(statusMsg.text == ""){

if(currentAnswer == "abc":[0]){

currentScore += 100/questionMax;

statusMsg.text = "CORRECT!";

}else{

statusMsg.text = "WRONG";

}

setTimeout(newQuestion, 1000);

}

}

private function bPressed(e:MouseEvent):void {

if(statusMsg.text == ""){

if(currentAnswer == "abc":[1]){

currentScore += 100/questionMax;

statusMsg.text = "CORRECT!";

}else{

statusMsg.text = "WRONG";

}

setTimeout(newQuestion, 1000);

}

}

private function cPressed(e:MouseEvent):void {

if(statusMsg.text == ""){

if(currentAnswer == "abc":[2]){ //IS THIS RIGHT?

currentScore += 100/questionMax;

statusMsg.text = "CORRECT!";

}else{

statusMsg.text = "WRONG";

}

setTimeout(newQuestion, 1000);

}

}

private function newQuestion():void {

statusMsg.text = "";

grabQuestion();

}

}

}