Step 1: Understanding the Concept:
The shapes of xenon compounds come from VSEPR theory using bond pairs plus lone pairs around Xe.
Step 2: Match (a) XeF4:
Xe has 4 bond pairs and 2 lone pairs (octahedral electron geometry). The lone pairs sit opposite each other, so the shape is square planar: (a) - (ii).
Step 3: Match (b) XeF6:
Xe has 6 bond pairs and 1 lone pair. The lone pair distorts the octahedron, so the shape is distorted octahedral: (b) - (iii).
Step 4: Match (c) XeOF4:
Xe has 5 bond regions (4 Xe-F and 1 Xe=O) and 1 lone pair. The shape is square pyramidal: (c) - (iv).
Step 5: Match (d) XeO3:
Xe has 3 bond regions and 1 lone pair, so the shape is trigonal pyramidal: (d) - (i).
Step 6: Conclusion:
The set (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i) is option D. Options A, B and C each mismatch at least one pair.
Final Answer:
The correct matching is (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i).
\[ \boxed{\text{(D) }\text{(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)}} \]