Which answer fails to compile?

CAN ANY ONE GIVE CORRECT EXPLANATION TO THIS QUESTION

Definitely C -Option D.

Any class that inherits directly or indirectly has a IS-A relationship with the super class.

So;

Tiger IS-An Animal…..because it extends Cat which extends Animal.
Cat IS-A Hunter……..because it implements Hunter.
Tiger IS-A Hunter………because it extends Cat which implements Hunter.
Cat IS-NOT a Tiger……..because it doesn’t inherit from it.
Cat IS-An Animal…….because it extends Animal.

Hope this helps.