If the person who writes a class template knows what functions the client will have in the main program, the class template functions can call the functions in the main program because:

A. when the compiler makes a class from the class template, it will have already seen the function prototypes that exist in the main program
B. one function can always call any other function that exists in the entire software system
C. This statement may sometimes be false. This statement is only true if the function in the main program is a hash function.
D. The main program is compiled before the class template is compiled.


A

Computer Science & Information Technology

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