Oxygen Is Paramagnetic and Has a Bond Order of Two

Oxygen is paramagnetic and has a bond order of two. Which of the following represents the ground electronic state for oxygen?

A) $\left(\sigma_{1_{1}}\right) ^{2}\left(\sigma_{1_{2}}^{.}\right) ^{2}\left(\sigma_{2_{2}}\right) ^{2}\left(\sigma_{2_{2}}^{.}\right) ^{2}\left(\sigma_{2_{p_{1}}}\right) ^{2}$$\left(\pi_{2 _{px}}\right) ^{2}\left(\pi_{2 _{py}}\right) ^{2}$$\left(\pi_{2_{px}}^{.}\right) ^{1}$$\left(\pi_{2_{py}}^{.}\right) ^{1}$
B) $\left(\sigma_{1_{1}}\right) ^{2}$$\left(\sigma_{1_{1}}^{.}\right) ^{2}\left(\sigma_{1_{2}}\right) ^{2}\left(\sigma_{2_{2}}^{.}\right) ^{2}\left(\sigma_{2_{pt}}\right) ^{2}\left(\sigma_{2_{p_{t}}}^{.}\right) ^{2}$$\left(\pi_{2 _{px}}\right) ^{2}\left(\pi_{2 _{py}}\right) ^{2}$
C) $\left(\sigma_{1_{i}}\right) ^{2}\left(\sigma_{1_{1}}^{.}\right) ^{2}\left(\sigma_{2_{2}}\right) ^{2}\left(\sigma_{2_{2}}^{.}\right) ^{2}\left(\sigma_{2_{p_{t}}}\right) ^{2}$$\left(\pi_{2_{px}}\right) ^{1}\left(\pi_{2_{py}}\right) ^{1}$
D) A and C are equally probable
E) None of the above