In a Reversible Heat Engine,one Mole of an Ideal Gas

Multiple Choice

In a reversible heat engine,one mole of an ideal gas is carried through a circular cycle beginning and ending at point A as shown in the figure.Which one of the following statements concerning this system is false?

A) The entropy must increase in one cycle.
B) The heat added in one cycle must be 314 J.
C) The work done in completing one cycle is 314 J.
D) The change in internal energy for one cycle is zero joules.
E) The internal energy for this system is dependent on its state.