For an Unbiased P-N Junction, the Energy at the Bottom

For an unbiased p-n junction, the energy at the bottom of the conduction band on the n side is:

A) higher than the energy at the bottom of the conduction band on the p side
B) lower than the energy at bottom of the conduction band on the p side
C) lower than energy at the top of the valence band on the n side
D) lower than energy at the top of the valence band on the p side
E) the same as the energy at the bottom of the conduction band on the p side