Please answer the following questions 1-2-3

Which of the following statements about inheritance is not true? Why? a. A class can be both a subclass and a class at the same time. b. Every class is a subclass of the object class. c. Common d. features should be located as high in the inheritance hierarchy as possible. e. The toString and equals methods are inherited by all classes. e. The type of the reference, not the type of the object, is used to determine which version of an override method is invoked. Consider the two calls public class D extends B{public void f(){this.g ();//1} public void g(){this.g();//2}} Which of them is an example of polymorphism? Why? In an object-oriented traffic simulation system, we have the following classes: Vehicle PickupTruck Car SportUtilityVehicle Truck Minivan Sedan Bicycle Coupe Motorcycle Draw an inheritance diagram that shows the relationships between these classes