Which of the following is planar?

Xenon tetrafluoride, ${\mathrm{XeF}}_4$ is ${\mathrm{sp}}^3{\mathrm{d}}^2$ hybridized having a square planar structure. It has four bond pairs and two lone pairs. The four $\mathrm{Xe}-\mathrm{F}$ bonds are perpendicular to each other and lie on the axial positions and the lone pairs lie above the plane, opposite to each other.