11 . A variable that’s known only within the function in which it’s defined is called a(n). a. Local Variable b. Global Variable 12 . The _______ of an identifier is the portion of the program in which the identifier can be used. a. Function Definition b. Function Declaration c. Function Call d. Function Return 13 . What is the only function all C++ programs must contain? a. start() b. system() c. main() d. program() 14 . A pointer variable contains as its value of another variable. True False

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Types of Function

A function is a process or task that does some operation in the program. Some programming languages may contain built-in functions for certain commonly used tasks. Most programming languages also support user-defined functions, which means a user can write their own function to perform some operation. There are some libraries or header files that contain built-in functions for performing certain tasks.