Consider the following complexes

I) ${\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_6\right]}^{3+}$

II) ${\left[{\mathrm{CoF}}_6\right]}^{3-}$

III) ${\left[\mathrm{Co}{\left({\mathrm{NO}}_2\right)}_6\right]}^{3-}$

the increasing order of wavelength of light absorbed is

• A

  II, I, III

• B

  I, II, III

• C

  III, II, I

• D

  III, I, II