An abstract class is which of the following?
A. A class that has direct instances, but whose descendants may have direct instances.
B. A class that has no direct instances, but whose descendants may have direct instances.
C. A class that has direct instances, but whose descendants may not have direct instances.
D. A class that has no direct instances, but whose descendants may not have direct instances
Answer:A
An abstract class is which of the following?
A. A class that has direct instances, but whose descendants may have direct instances. B. A class that has no direct instances, but whose descendants may have direct instances. C. A class that has direct instances, but whose descendants may not have direct instances. D. A class that has no direct instances, but whose descendants may not have direct instances