In a Steam Engine, Steam in a Cylinder Is Compressed

In a steam engine, steam in a cylinder is compressed by a piston exerting 16.5 atm of external pressure.The volume of the cylinder decreases by 22.4 L, and simultaneously the steam heats up.If the total energy change of the steam is 42.6 kJ, calculate the heat flow into/out of the steam. (101.3 J =1 L.atm)

A) +80.0 kJ
B) +37.4 kJ
C) -37.4 kJ
D) +5.2 kJ
E) -5.2 kJ