Reply To:

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

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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

› Reply To:

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