Home Modern › Forums › ISRO › We can make a class abstract by We can make a class abstract by
(A) Declaring it abstract using the virtual keyword
(B) Making at least one member function as virtual function
(C) Making at least one member function as pure virtual function
(D) Making all member function const
(A) Declaring it abstract using the virtual keyword
(B) Making at least one member function as virtual function
(C) Making at least one member function as pure virtual function
(D) Making all member function const
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