Answer:
"is-a" relationship is used to indicate that a derived class belongs to the family of base class.
Explanation:
IS-A relationship based on Inheritance, which can be of two types Class Inheritance or Interface Inheritance.
"is-a" relationship is used to indicate that a derived class belongs to the family of base class. For example vehicle is a class which belongs to car base class.
Any derived class that extends base class have " is-a " relation ship with base class
Any class that implement an interface also has " is-a " relation ship" with the interface
