Option (B) and (C) is the correct option to the following question.
Explanation:
Because the function is the module of the program and we call that function again and again anywhere whenever we need that function in the program.
Function is used to carry out any operation which is used in the program many times and it creates the program short and simple.
<u>For example</u>: if we need to add or multiply two numbers many times in the program then, we create one or two functions for addition and subtraction or one program for both, when we need them we call them.