Question 31 Unsaved At least one method in an abstract class must be abstract. Question 31 options: A) true B) false

An interface can extend any number of interfaces using the implements keyword.

Question 33 options:

A)

true

B)

false

Question 34 (2 points)

Which of the following statements regarding abstract methods are true?

Question 34 options:

A)	An abstract class can have instances created using the constructor of the abstract class.

B)	An abstract class can be used as a data type.

C)	An abstract class can be extended.

D)	A subclass can override a concrete method in a superclass to declare it abstract.

E)	A subclass of a non-abstract superclass can be abstract.