During autumn, a boy notices that the road is littered with orange leaves. He looks up to find that the tree is devoid of most leaves, while some of them are still falling. The phytohormone responsible for this causes ________________.
- Adevelopment of carotenoids and dehiscence of leaves.
- Bdestruction of chlorophyll and senescence.
- Cinhibits seed germination and promotes dormancy.
- Ddessication of leaves and subsequent falling.
✓ Correct answer: B
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