Which of these options demonstrate how to create an Interface Class in C++ ?
a. virtual class Interface { public: virutal int methodAO = 0; virtual int methodB = 0; }; b. class Interface { public: virutal int methodAO{} = 0; virtual int methodB({} = 0; }; c. class Interface { public: virutal int methodA) = 0; virtual int methodB() = 0; }; d. class Interface { public: virutal int methodAO; virtual int methodB(); }; e. class Interface { public: int methodAO; int methodBO; };