Given the class definition, class A {public: A{}{} A(int x. char y):xx(x). yy(y) {}//other members private: int xx; char yy;} Tell which definition below is legal. A x () A x (1) Ax (3, "B"); A x (2, 'A') A class member that is to be shared among all object of a class is called A reference member A const member A value member A static member