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What is a closure in programming?

• A function bundled with its lexical environment

• A type of loop structure

• A method for sorting data

• A way to declare variables

Why are closures important?

• They allow for data encapsulation

• They simplify syntax

• They increase execution speed

• They are used for error handling

How do closures capture variables?

• By copying the variable's value

• By referencing the variable's memory location

• By creating a new variable

• By using a global variable

Which of the following is an example of a closure?

• A function that returns another function

• A loop that iterates over an array

• A class with multiple methods

• A variable declared inside a function

In which scenario would you use a closure?

• To create a new object

• To declare a constant

• To maintain state between function calls

• To perform arithmetic operations