Among the following complexes $$(K-P), K_3[Fe(CN)_6](K), [Co(NH_3)_6]Cl_3 (L), Na_3[Co(oxalate)_3] (M), [Ni(H_2O)_6]Cl_2 (N), K_2[Pt(CN)_4] (O)$$ and $$[Zn(H_2O)_6](NO_3)_2 (P)$$ the diamegnetic complexes are

A

K, L, M, N

B

K, M, O, P

C

L, M, O, P

D

L, M, N, O