11.abstractclassVehicle{publicintspeed(){return0;}}12.classCarextendsVehicle{publicintspeed(){return60;}}13.classRaceCarextendsCar{publicintspeed(){return150;}}......21.RaceCarracer=newRaceCar();22.Carcar=newRaceCar();23.Vehiclevehicle=newRaceCar();24.System.out.println(racer.speed()+,?+car.speed()25.+,+vehicle.speed());Whatistheresult?()
A.0,0,0
B.150,60,0
C.Compilationfails.
D.150,150,150
E.Anexceptionisthrownatruntime.