Concept:Van Hiele's theory describes five levels of geometric reasoning. This matching question uses the first four levels.
Explanation:Level 1 (Visualization): Students recognize figures only by their physical appearance. Matches (iv).
Level 2 (Analysis): Students identify figures based on their properties, not just appearance. Matches (iii).
Level 3 (Abstraction): Students explore relationships between figures using their properties. Matches (ii).
Level 4 (Deduction): Students can understand and construct geometric theorems. Matches (i).
Answer:(a) – (iv), (b) – (iii), (c) – (ii), (d) – (i). Option D.