1. Describe the significance of the global variable index. How is indexing used with lists in this app?

The index variable was significant in connecting all lists used in the Quiz App.

2. Describe how parallel lists were used in this app. Why was the parallel structure of the lists necessary

Parallel lists were used in this app to navigate the images, questions, and answer lists in the intended order. The parallel structure of the list was necessary so the answers and images made sense with the question.

3. Include screenshots of your code for exercises 2 and 3 from the Enhancements section.

4. Include a screenshot of the code that added your extra question (exercise 4). Explain why the code for the buttons worked without any changes after the addition of the extra question.

Because the index was set to never be greater than the number of items in list, we did not have to change anything.