a$)$ Define a base class called Shape. The Shape class should have the following members:

Protected Member Variable: id $($double$)$

A constructor with parameter $a.$ It should set the value of member id with $a.$

Public virtual function: print. This function will print "Polymorphism".

b$)$ Define a class named Circle. It should be derived from the Shape class and have following members:

A constructor with parameter $c.$ It should call the base class constructor to set the value of member $id$ with $c.$

A print function that overrides the print function in the base class. This function should call base class's print function and also print the data member $id.$

c$)$ After you have created these classes, create a test piveram $($containing main$())$ that does the following

defines a Circle object with id $10.$

declares a Shape pointer. The Shape pointer will point to object of class Circle.

uses the Shape pointer to invoke print function.

d$)$ State the output of the program.