During autumn, a boy notices that 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 ………….

Options

A. (a) development of carotenoids and dehiscence of leaves.
B. (b) destruction of chlorophyll and senescence.
C. (c) inhibits seed germination and promotes dormancy.
D. (d) desiccation of leaves and subsequent falling.

Answer

B