$1.$ Describe the feature called Inheritance. Explain the benefits of using this feature.

$2.$ Where are items accessible if they are protected?

$3.$ Write a prototype for a function named display as it would appear in a base class if we wanted it to enable polymorphism as well as make the class an abstract base class.

$4.$ Suppose Dog is a derived class, derived from Animal. Given: Animal a; Dog b;

Which of the following results in a syntax error? Explain why.

a$=$ b;

b$=$ a;

$5.$ Write a class named Person $($header and implementation files, no comments$).$ For data just store a Person's name. Write one function, a display function. Feel free to call other functions if you like, but you do not have to write the ones I don't ask for.Next, derive a class named Student from Person. For data use only one new piece of information, the student's GPA. Over$-$ride the display function so that all information for a Student is displayed.