If the intermolecular axis is taken to be in z-direction then, molecular orbitals obtained from $2{\mathrm{p}}_{\mathrm{x}}\text{ and }2{\mathrm{p}}_{\mathrm{y}}$ orbitals are not symmetrical around the bond axis because

positive lobes are above the molecular plane and negative lobes are below the molecular plane

negative lobes are above the plane and positive lobes are below the plane

positive and negative lobes both are in same plane

All of the above