What keyword is used to return a value from a function?

• A. return
• B. output
• C. send
• D. yield

Answer: (A)

The keyword used to return a value from a function in Python is "return." When a function is called, it can perform a series of operations, and when it reaches the return statement, it stops execution and sends a specified value back to the caller. This allows you to use the result of the function in further calculations or to display it.

For example, if you define a function that adds two numbers, you can use the return statement to send the sum back. When called, the function will return that value, which can then be stored in a variable or printed to the console.

The other keywords mentioned, such as "output" and "send," do not exist in Python with the functionality to return values from functions. "Yield" is related but serves a different purpose; it is used to create generator functions that can pause and resume execution, yielding multiple values over time rather than returning a single value immediately.