If a function is friend of a class, which one of the following is wrong?
(A) A function can only be declared a friend by a class itself.
(B) Friend functions are not members of a class, they are associated with it.
(C) Friend functions are members of a class.
(D) It can have access to all members of the class, even private ones.


Answer: (C)

Explanation:
Friend of the class can be member of some other class but Friend functions are not the members of a particular class.
For more information on Friend function Refer:Friend class and function in C++
Option (C) is correct.

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