Identify the correct order of the wavelength of light absorbed for the following complex ions.

\(\left (I\right )\left [ Co\left ( H_{2}O \right )_{6} \right ]^{3+}\, ;(II)\, \left [ Co\left ( CN \right )_{6} \right ]^{3-}\, ;(III)\, \left [ CO\left ( I \right )_{6} \right ]^{3-}\, ;(IV)\, \left [ Co\left ( en \right )_{3} \right ]^{3+}\)