What keyword do you use to create a function that has no value to return?

• A. None
• B. void
• C. empty
• D. pass

Answer: (A)

The correct answer is based on the fact that in Python, the keyword used to define a function that does not return any value is "None." When a function is executed and there is no return statement or an explicit return statement that does not return any value, Python implicitly returns "None."

This is an important concept in Python, as it indicates that the function has completed its execution but does not provide any specific value to be used afterward. For example, you can define a function that performs a task, such as printing a message, without returning anything meaningful. Upon completing its execution, calling that function will yield a result of "None."

The other options do not accurately represent how Python handles functions that do not return a value. "void" is a keyword in some other programming languages like C or Java to indicate functions that do not return a value, but it is not valid in Python. "empty" and "pass" are also incorrect in this context; "empty" is not a keyword in Python, and while "pass" is a statement used to indicate that nothing happens in a block of code, it does not define a return value for a function. Therefore, recognizing "None" is crucial for understanding how function return behavior works