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Which of the following is correct about static variables?

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Which of the following is correct about static variables?

(a) Static functions do not support polymorphism

(b) Static data members cannot be accessed by non-static member functions

(c) Static data members functions can access only static data members

(d) Static data members functions can access both static and non-static data members

I have been asked this question by my school teacher while I was bunking the class.

The doubt is from Static Constant Keyword topic in section Basics Concepts of C++ of C++

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The correct option is (c) Static data members functions can access only static data members

Best explanation: Static member functions can access static data members only. Static member functions can be overloaded. Static data members can be accessed by non-static member functions.

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