You work as a developer at ABC.com. The ABC.com network consists of a single domain named
ABC.com.
You have been tasked with creating an application for ABC.com. The written code includes an
abstract class.
Which of the following is TRUE with regards to abstract classes? (Choose all that apply.)

A.
It cannot be instantiated.

B.
It cannot be used as a base class.

C.
It provides a common definition of a base class that multiple derived classes can share.

D.
It is used to prevent derivation.

Explanation: