Why Do Aqueous Solutions of Cr²⁺ usually Appear Violet Instead

Why do aqueous solutions of Cr²⁺ usually appear violet instead of blue?

A) The intensity of the color is so low it appears violet instead of blue.
B) Chromium(II) rapidly forms a complex ion with water and that ion is violet- colored.
C) Chromium(II) reacts with water to form a hydroxide- containing complex ion that is violet- colored.
D) Chromium(II) is rapidly oxidized to chromium(III) by atmospheric oxygen.
E) Water usually contains enough chloride ion to form a complex ion containing chloride and that substance is violet- colored.