Which term describes a reusable block of code that performs a specific task?

• A. Abstraction
• B. Boolean
• C. Function
• D. Expression

Answer: (C)

A function is a reusable block of code that performs a specific task. Think of it as a named recipe in your program: you define the steps once, and then you can run that same set of steps anywhere in your code by calling the function. It can also take inputs (parameters) and often returns a result, which makes it flexible and easy to reuse in different places without duplicating code. This reuse is what makes functions so powerful for organizing programs and breaking problems into manageable parts.

Abstraction is about hiding unnecessary details to focus on the important parts of a problem, not about a reusable block of code. A Boolean is a data type that represents true or false. An expression is a combination of values and operators that evaluates to a value, but it isn’t a standalone reusable block of code like a function.