@Override
	public void display(Boolean showCorrect) {
		System.out.println(prompt);

		for ( int i=0; i < col1Choices.size(); i++){
			//System.out.println((i+1)+"). " + col1Choices.get(i) + "\t" + (i+1) + ")." + col2Choices.get(i));
			System.out.format("\t"+(i+1)+").%-15s"+(i+1) + ").%-15s\n", col1Choices.get(i), col2Choices.get(i));
		}
		
		if (answer.size()>0 && showCorrect){
			System.out.println("The Correct answer is: ");
			for (int key: answer.keySet()){
				System.out.println(col1Choices.get(key-1) + "\t" + col2Choices.get(answer.get(key)-1));
			}
		}
	}