NH3⇒sp3 hybridised with 1 lone pair. Structure will be Trigonal Pyramidal. BrF5⇒sp3d2 hybridised with 1 lone pair. Structure will be Square Pyramidal. XeF4⇒sp3d2 with two lone pairs. Structure will be Square Planar. SF6⇒sp3d2 with no lone pair. Structure will be Octahedral. A-I, B-IV, C-II, D-III