\( \mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6} \mathrm{l}_{3}...

\( \mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6} \mathrm{l}_{3}\right. \) a blue coloured complex. Average oxidation number of \( \mathrm{Fe} \) in \( \mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{3} \) is 'a' oxidation state of centeral iron atom ' \( \mathrm{b} \) ' oxidation state of counter iron atom 'c', \( \mathrm{a}, \mathrm{b}, \mathrm{c} \) are respectively -
P
(A) \( +\frac{5}{2},+2,+3 \)
(B) \( +\frac{5}{2},+3,+2 \)
(C) \( +\frac{18}{7},+2,+3 \)
(D) \( +\frac{18}{7},+3,+2 \)
\( \mathrm{W} \)