Chapter 11, Problem 4SA

Explanation of Solution

Base class and derived class:

• In C#, the inheritance concept involves two classes. They are base class and derived class.
• A base class is also referred as “general class” or “super class” and a derived class is referred as “specialized class” or “sub class”.
• The derived class is an extended kind of the base class. This means a derived class can inherit the fields, properties, and methods from the base class without rewriting them in the derived class.
• Extra methods can be added in the derived class which implies the specialized kind of the base class...