What is the purpose of the return statement in a function?

• A. It prints output to the console
• B. It is used to call a function
• C. It is used to exit a function and pass back a value
• D. It defines the parameters of a function

Answer: (C)

The purpose of the return statement in a function is to exit the function and pass back a value to wherever the function was called. When a function executes a return statement, the execution of that function stops at that point, and the specified value is sent back to the caller. This allows the function to provide output, which can then be used in further computations or logic within the program.

For example, if you have a function that calculates the sum of two numbers, the return statement will provide that sum back to the part of the program that invoked the function. This mechanism of returning values is critical for effective function design, as it enables the modularity and reusability of code, allowing other parts of the program to make use of the results produced by a function.

Parameters, calling the function, and printing output to the console all involve different concepts in programming. They each serve specific roles but do not define the primary function of the return statement.