Step 1: Understanding the Question:
This question tests knowledge of plant pigments and their sources.
Step 2: Detailed Explanation:
Lycopene (A): Found in Watermelon (IV) and tomato.
Beta cyanin (B): Found in Beetroot (I) (betacyanin is the red pigment).
Beta carotene (C): Found in Carrot (II).
Capsanthin (D): Found in Chilli (III) (red pigment in capsicum).
Thus, the correct matching is A-IV, B-I, C-II, D-III.
Step 3: Final Answer:
Thus, the correct answer is A-IV, B-I, C-II, D-III, which corresponds to option (B).
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