55.Given: 11. abstract class Vehicle{public int speed(){return 0；}} 12. class Car extends Vehicle{public int speed(){return 60；}} 13. class RaceCar extends Car{public int speed(){return 150；}} ... 21. RaceCar racer = new RaceCar()； 22. Car car = new RaceCar()； 23. Vehicle vehicle = new RaceCar()； 24. System.out.println(racer.speed() + ", " + car.speed() 25. + ", " + vehicle.speed())； What is the result?
(A) 0, 0, 0
(B) 150, 60, 0
(C) Compilation fails.
(D) 150, 150, 150
(E) An exception is thrown at runtime.