Identify the correct statement(s) among the following 

(A) According to MOT,  $O_2$ molecule possesses two unpaired electrons in antibonding M.O.s Hence it is paramagnetic.
(B)  $N_2$  : $\sigma 1s^2,{\sigma }^{*}1s^2,\sigma 2s^2,{\sigma }^{*}2s^2,\pi 2p_x^2,\pi 2p_y^2,\sigma 2p_z^2$  . So its B.O is ‘3’ and diamagnetic (Hence false)
(C) Bond energy $\propto$  bond order. Bond order in $O_2$  is 2, while in $O_2^{+}$  , the bond order is 2.5
(D) NO has odd electron. It is lost in the formation of  $N{O}^{+}$