Aqueous Copper(I) Chloride Is Nearly Colourless Whereas Aqueous Copper(II) Chloride

Aqueous copper(I) chloride is nearly colourless whereas aqueous copper(II) chloride is blue in colour. This difference is because(If needed, use the following equation:Spectrochemical Series
I^- < Br^- < Cl^- < F^- < OH^- < H₂O< NH₃ < en < NO₂^- < CN^- < CO)

A) the crystal field splitting in copper(I) is much larger than that in copper(II) .
B) the crystal field splitting in copper(I) is much smaller than that in copper(II) .
C) the electron configuration of copper(II) has all subshells filled.
D) the electron configuration of copper(I) has all subshells filled.
E) copper(I) chloride doesn't dissolve in water.