Answer: b.
Explanation: A sub procedure
is a series of Visual Basic statements enclosed by the Sub and End Sub statements. The Sub procedure performs a task and then returns control to the calling code, but it does not return a value to the calling code.
While a Function is the named of the section of a program that performs a specific task.
The difference between a function and a procedure is that a function performs a specific action which returns a value, while a procedure performs some operation but does not return a value.