What is the purpose of the `score` variable in the provided JavaScript code?

• To store the number of correct answers

• To store the current question number

• To track the total number of questions

• To calculate the final quiz score

In the code, how are questions and answers structured?

• As an array of objects

• As a single string

• As a series of variables

• As an HTML list

What is the purpose of the `showQuestions` function in the code?

• To display quiz results

• To highlight the selected answer

• To create a new quiz

• To check if an answer has been selected

How is the user's answer checked in the code?

• By comparing it to a random answer

• By comparing it to the first answer

• By comparing it to the correct answer

• By comparing it to the previous question's answer

What happens when the "Next Question" button is clicked in the code?

• The quiz results are displayed

• The current question is repeated

• The next question is displayed

• The quiz is reset to the first question

What is the final message displayed to the user in the `showResults` function in the provided code?

• You scored [score] points

• You got [correctAns] out of [currentIndex] correctly

• You answered [correctAns] questions correctly

• Your quiz is complete

How is the user's score calculated in the code?

• By adding 20 points for each correct answer and subtracting 10 points for each wrong answer

• By adding 10 points for each correct answer and subtracting 20 points for each wrong answer

• By adding 5 points for each correct answer and subtracting 5 points for each wrong answer

• By adding 1 point for each correct answer and subtracting 1 point for each wrong answer

What does the `getElementById` method do in JavaScript?

• It retrieves an element by its class name

• It retrieves an element by its tag name

• It retrieves an element by its unique identifier

• It retrieves an element by its data attribute

In JavaScript, which of the following data types is not a primitive data type?

• Number

• String

• Object

• Boolean

What does the `addEventListener` method in JavaScript allow you to do?

• Add a new element to the document

• Change the page's background color

• Attach an event handler to an element

• Create a new JavaScript function