A. By making all the methods pure virtual in a class
B. By making all the methods abstract using the keyword ‘abstract’ in a class
C. By declaring the class as interface with the keyword ‘interface’
D. It is not possible to create interface class in C++
B. By making all the methods abstract using the keyword ‘abstract’ in a class
C. By declaring the class as interface with the keyword ‘interface’
D. It is not possible to create interface class in C++
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