One mole of the complex compound $CO(NH_3)_5Cl_3$ gives 3 moles of ions on dissolution in water.On a mole of the same complex reacts with 2 moles of $AgNO_3$ solution to yield 2 moles of $AgCl(s)$.The structure of complex is

Question

$\begin{array}{1 1}(a)\;[CO(NH_3)_3Cl_3].2NH_3\\(b)\;[CO(NH_3)_4Cl_2]Cl.NH_3\\(c)\;[CO(NH_3)_4Cl]Cl_2NH_3\\(d)\;[CO(NH_3)_5Cl]Cl_2\end{array}$