Which of the following is NOT explained by Crystal Field Theory but IS explained by Ligand Field Theory? select all that apply. O Splitting of the d-orbital energy levels of d-block metal complexesO. Spectrochemical series of ligands. O Spectrochemical series of metals. O Jahn-Teller distortion. Why 4a^6 and 5a^6 four-coordinate complexes prefer square planar over tetrahedral geometry. O Why pi-acceptor ligands contribute to large Delta 0. O Why pi-donor ligands contribute to large Delta 0.