11. What is a scope resolution operator? How is it useful for defining the data member and member function of a class? 12. Explain the difference between a data member of a class and the conventional...

11. What is a scope resolution operator? How is it useful for defining the data member and member function of a class?

12. Explain the difference between a data member of a class and the conventional variables in C++.

13. How is the member function of a class accessed in C++?

14. What is an array of class objects? How are the array of class objects defined in C++?

15. In what way is a union data type useful for constructing a class object in C++?