Using valence bond theory , the complex `[Cr(H_(2)O)_(6)]^(3+)` can be described as
A. `sp^(3) d^(2)` , outer orbital complex , paramagnetic
B. `dsp^(2)` , inner orbital complex , diamagnetic
C. `d^(2) sp^(3)` , inner orbital complex , paramagnetic
D. `d^(2) sp^(3)` , outer orbital complex , diamagnetic .