A system goes from $$A$$ to $$B$$ via two processes I and II as shown in the figure. If $$\Delta U_1$$ and $$\Delta U_2$$ are the changes in internal energies in the processes I and II respectively, the

A

$$\Delta U_1 = \Delta U_2$$

B

relation between $$\Delta U_1$$ and $$\Delta U_2$$ can not be determined

C

$$\Delta U_2 > \Delta U_1$$

D

$$\Delta U_2 < \Delta U_1$$