Steam in a Cylinder Is Compressed by a Piston Exerting

Steam in a cylinder is compressed by a piston exerting a constant pressure of 5 atm. The volume of the cylinder decreases by 15 L and simultaneously the steam is cooled, losing 105 kJ of energy as heat. How much energy, total, was gained or lost by the steam in this process? (101.3 J = 1 L atm)

A) (-30.0 kJ)
B) (-97.4 kJ)
C) (-113 kJ)
D) (-180.0 kJ)
E) 113 kJ