`PCl_(5)` is an example of a molecule having `sp^(3)d`-hybridisation. Three out of the orbitals in `sp_(x)p_(y)`-hybridisation while remaining two have `p_(x)d_(x^(2))`-hybridisation. If P-atom is attached to substitutuents differ in electronegativity, as in `PCl_(x)F_(5-x)`, then it is has been experimently observed that the more electronegativity substituent occupies the axial position of t.b.p geometry.
Q. The highest `H-C-H` bond angle present in :

Answer

A