Pair of species among the following having same bond order as well as paramagnetic character will be-

A

$${O_{2}}^{+},{N_{2}}^{2-}$$

B

$${O_{2}}^{+},{N_{2}}^{-}$$

C

$${O_{2}}^{-},{N_{2}}^{-}$$

D

$${O_{2}}^{-},{N_{2}}^{+}$$