Answer:
The answer to the given question is the option "a".
Explanation:
A function is a block of organized code that provides the reusability of the code. It is used to perform a separate, complex action. In programming languages name is different like, functions, methods, subroutines, procedures, etc. but the working of the function is the same. The purpose of the function that does not return a value is the option "a" and All the options are correct.