Answer: B
XeOFX4: 5 sigma bonds and 1 lone pair, so 6 pairs, sp3d2, square pyramidal. XeOX3: 3 sigma bonds and 1 lone pair, so 4 pairs, sp3, pyramidal. XeOX2FX2: 4 sigma bonds and 1 lone pair, so 5 pairs, sp3d, see-saw. XeFX6: 6 bond pairs and 1 lone pair, so 7 pairs, sp3d3, distorted octahedral.