Given:

Which code fragment can replace the if block?

Given the code fragment:

Which option can replace xxx to enable the code to print 135?

Given:

Given the code fragment:

and the requirements of the application:
- It must display the menu.
- It must print the option selected.
- It must continue its execution till it reads `0'.
Which code fragment can be used to meet the requirements?

You are asked to develop a program for a shopping application, and you are given the following information:
The application must contain the classes Toy, EduToy, and ConsToy. The Toy class is the superclass

of the other two classes.
The int calculatePrice (Toy t) method calculates the price of a toy.

The void printToy (Toy t) method prints the details of a toy.

Which definition of the Toy class adds a valid layer of abstraction to the class hierarchy?
A:

B:

C:

D: