Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :

A

a-iii, b-v, c-i, d-ii

B

a-iv, b-i, c-ii, d-iii

C

a-i, b-ii, c-iii, d-iv

D

a-iv, b-v, c-ii, d-i