True or False: Every programming language has its own rules about how subroutines are named and how they are called.

• A. True
• B. False
• C. Sometimes
• D. Not necessarily

Answer: (A)

Naming and calling subroutines depend on the language’s syntax and rules. Each programming language defines what counts as a valid subroutine name—what characters are allowed, whether identifiers are case sensitive, and which words are reserved. It also specifies how you actually invoke a subroutine: the exact call syntax, how many and what kinds of parameters you pass, how values are returned, and whether arguments are passed by value, by reference, or through other mechanisms. Because these details differ from language to language, every language has its own rules for naming and calling subroutines. Even if two languages share similarities, the precise requirements are different, so the statement is true.