For $\mathrm { XeO } _ { 2 } \mathrm {~F} _ { 2 }$, select the correct statement(s).
(I) It shows see-saw shape.
(II) Number of lone pair(s) of $\mathbf { e } ^ { - }$on Xe is 1.
(III) $\angle \mathrm { FXeF } = 180 ^ { \circ }$ (approx.)
(IV) It has tetrahedral shape.
(A) (I), (III), (IV) only
(B) (I), (II), (II) only
(C) (I), (II) only
(D) (II), (III), (IV) only