The correct order of energy of $\sigma_{2p_z}$,$\pi_{2p_x}$,$\pi_{2p_y}$,$\pi_{2p_x}^*$,$\pi_{2p_y}^*$ and $\sigma_{2p_z}^*$ orbitals in $F_2$ is:

• A
  $\sigma_{2p_z} < \pi_{2p_x} = \pi_{2p_y} < \pi_{2p_x}^* = \pi_{2p_y}^* < \sigma_{2p_z}^*$
• B
  $\pi_{2p_x} = \pi_{2p_y} < \sigma_{2p_z} < \pi_{2p_x}^* = \pi_{2p_y}^* < \sigma_{2p_z}^*$
• C
  $\sigma_{2p_z} > \pi_{2p_x} = \pi_{2p_y} > \pi_{2p_x}^* = \pi_{2p_y}^* > \sigma_{2p_z}^*$
• D
  $\pi_{2p_x} = \pi_{2p_y} < \pi_{2p_x}^* = \pi_{2p_y}^* < \sigma_{2p_z} < \sigma_{2p_z}^*$