Three complexes,
[CoCl(NH₃)₅]²⁺(I),
[Co(NH₃)₅H₂O]³⁺(II) and
[Co(NH₃)₆]³⁺(III)
absorb light in the visible region. The correct order of the wavelength of light absorbed by them is:
a. (III) > (I) < (II)
b. (I) > (II) > (III)
c. (II) > (I) > (III)
d. (III) > (II) > (I)