The hydraulic press shown in the figure is used to raise the mass M through a height of 0.5 cm be performing 500 J of work at the small piston. The diameter of the large piston is 10 cm, while that of the smaller one is 2 cm. The mass M is
(a) 100 kg
(b) 104 kg
(c) 103 kg
(d) 105 kg
