A library contains books and DVDS, which can be checked out andreturned. A warning is sent to borrowers who have overdue items. Bookscan be renewed but DVDS cannot, and DVDS have a shorter loan periodthan books. The library may expand in future to include other kinds ofitems.Suppose you are designing classes for the library. Which of the designsbelow is most appropriate?O A Libraryltem parent class that stores common information such as due date,and child classes Book and DVD.O A Book class and a DVD class that are unrelated, and a Libraryltem class thatstores an instance of Book or DVD in an instance attributeO A Book class and a DVD class that have no relationshipO A Libraryltem class whose attributes can be initialized differently depending on

Ans.) Option B i.e. A Book class and Dvd class that are unrelated and a Library class that stores…

renewed but DVDS cannot, and DVDS have a shorter loan perio oks. The library may expand in future to include other kinds of e you are designing classes for the library. Which of the designs s most appropriate? praryltem parent class that stores common information such as due date, child classes Book and DVD. ok class and a DVD class that are unrelated, and a Libraryltem class that es an instance of Book or DVD in an instance attribute

renewed but DVDS cannot, and DVDS have a shorter loan perio oks. The library may expand in future to include other kinds of e you are designing classes for the library. Which of the designs s most appropriate? praryltem parent class that stores common information such as due date, child classes Book and DVD. ok class and a DVD class that are unrelated, and a Libraryltem class that es an instance of Book or DVD in an instance attribute

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter11: Inheritance And Composition

Section: Chapter Questions

Problem 6PE

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T/F1. Interface classes cannot be expanded, but implementation classes may.
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