Match species given in Column I with the electronic configuration given in Column II.
`{:(,"Column I",,"Column II",),(("a"),"cr",("i"),[Ar]3d^(8)4s^(0),),(("b"),Fe^(2+),("ii"),[Ar]3d^(10)4s^(1),),(("c"),Ni^(2+),("iii"),[Ar]3d^(6)4s^(0),),(("d"),Cu,("iv"),[Ar]3d^(5)4s^(1),),(,,("v"),[Ar]3d^(6)4s^(2),):}`

Options

A. `{:(i,ii,ii,iv),(a, b, c, d):}`
B. `{:(i,ii,ii,iv),(d, c, a, b):}`
C. `{:(i,ii,ii,iv),(c, a, d, b):}`
D. `{:(i,ii,ii,iv),(b, c, a, d):}`

Answer

B