Match List I with List II. \begin{array}{llll}\hline & {c}{\begin{array}{c} List I \\(\mathrm{Complex})\end{array}} & & {c}{\begin{array}{c} List II \\(Oxidation \\number of metal)\end{array}} \\\hline A. & \mathrm{Ni}(\mathrm{CO})_4 & I. & +1 \\\hline B. & {\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{NO}\right]^{2+}} & II. & Zero \\\hline C. & {\left[\mathrm{Co}(\mathrm{CO})_5\right]^{2-}} & III. & -1 \\\hline D. & {\left[\mathrm{Cr}_2(\mathrm{CO})_{10}\right]^{2-}} & IV. & -2 \\\hline\end{array} Choose the correct answer from the options given below:

• Correct answer
  A

  A-II, B-I, C-IV, D-III
• B

  A-II, B-IV, C-I, D-III
• C

  A-II, B-III, C-I, D-IV
• D

  A-I, B-II, C-IV, D $\_$III

Hence, the correct answer is option: 'A'.