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Consider the following complex: \( \left[\mathrm{Co}\left(\mathrm{CO}_{3}\right)\left(\mathrm{NH}_{3}\right)_{5}\right] \mathrm{ClO}_{4} \)
\( \mathrm{P} \) Mark the correct option:

W
\( \begin{array}{ccccc} & \begin{array}{c}\text { Coordination } \\ \text { no. }\end{array} & \begin{array}{c}\text { Oxidation } \\ \text { no. }\end{array} & \begin{array}{c}\text { No. of } \\ \text { d-electrons }\end{array} & \begin{array}{c}\text { Unpaired } \\ \text { d-electrons }\end{array} \\ \text { (a) } & 6 & 3 & 6 & 0 \\ \text { (b) } & 7 & 2 & 7 & 1 \\ \text { (c) } & 7 & 1 & 6 & 4 \\ \text { (d) } & 6 & 2 & 7 & 3\end{array} \)
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