Correct increasing order for the wavelengths of absorption in the visible region by the complexes of `Co^(3+)` is:

Options

A. `[Co(H_(2)O)_(6)]^(3+) , [Co(en)_(3)]^(3+) , [Co(NH_(3))_(6)]^(3+)`
B. `[Co(H_(2)O)_(6)]^(3+) , [Co(NH_(3))_(6)]^(3+) , [Co(en)_(3)]^(3+)`
C. `[Co(Nh_(3))_(6)]^(3+), [Co(en)_(3)]^(3+) , [Co(H_(2)O)_(6)]^(3+)`
D. `Co(en)_(3)]^(3+) , [Co(NH_(3))_(6)]^(3+) , [Co(H_(2)O)_(6)]^(3+)`

Answer

D