Which of the following are used by the compiler as an aid to compile the program?

Explanation

Function: Functions are blocks of code that perform a specific task. While functions are essential components of a program, they are not directly used by the compiler as an aid in compilation. The compiler processes functions like any other code block, translating them into machine code.Constant macro: Constant macros are preprocessor directives that define constants within the code. While macros can be used to improve code readability and maintainability, they are not essential for compilation. The compiler can process code without them.Constant macro: Constant macros are preprocessor directives that define constants within the code. While macros can be used to improve code readability and maintainability, they are not essential for compilation. The compiler can process code without them.