Which of the Following Statements About Atoms Containing More Than

Which of the following statements about atoms containing more than one electron is incorrect?

A) Allowed energy states are affected by nucleus-electron and electron-electron interactions.
B) Higher nuclear charge lowers orbital energies.
C) The energy of an orbital is determined by n only.
D) Within a shell,subshells are split in energy because of their relative penetration and Z_eff.
E) Inner shell electrons provide better shielding for outer electrons than electrons in the same orbital do.