I don't understand: what I think is that since SUV extends Car extends Vehicle, SUV should have the suv, car and vehicle constructors, Car should have the Car and vehicle constructors, and Vehicle should just have the vehicle constructor. So how come statements like the first one, which are calling a constructor in a subclass from a superclass, are legal? Shouldn't all the answers be flipped (except d)? class_name object_name = new class_name(); public class Vehicle {} public class Car extends Vehic le {} public class SUV extends Car {} 4. The following statements are marked as legal or illegal: a. Vehicle v= new Car();// legal b. Vehicle v= new SUV();// legal c. Car c = new SUV(); // legal d. SUV s= new SUV(); // legal e. SUV s= new Car(); // illegal f. Car c= new Vehicle( );// illegal