Step 1: Understanding the Question:
This question tests knowledge of pigments in fruit crops.
Step 2: Detailed Explanation:
Guava peel contains phytoene, phytofluene, lycopene, and β-carotene.
These are carotenoid pigments responsible for the colour of guava peel.
Mango (A): Contains carotenoids but not all of these.
Banana (B): Contains chlorophyll and carotenoids.
Citrus (C): Contains carotenoids and flavonoids.
Thus, guava is the correct answer.
Step 3: Final Answer:
Thus, guava is known for the presence of phytoene, phytofluene, lycopene, and β-carotene in its peel, which corresponds to option (D).
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