Which of the Following Statements Is True for Crystal Field

Multiple Choice

Which of the following statements is true for crystal field theory of an octahedral complex?

A) The d_xy, d_yz, d_xz orbitals are lower in energy than the d_z2, and the d_x2-y2 because they are unaffected by the ligand field.
B) The d_xy, d_yz, d_xz orbitals are lower in energy than the d_z2, and the d_x2- because their energy is increased less than the d_z2, and the d_x2-y2.
C) in low spin complexes the d_z2, and the d_x2-y2 are lower in energy than the d_xy, d_yz, d_xz orbitals.
D) a & c
E) b & c