A) Abscisic acid
B) Indole butyric acid
C) Indole-3-acetic acid
D) Gibberellic acid
Correct Answer: A
Solution :Abscisic acid (ABA), also known as abscise II and dorrnin, is a plant hormone. It functions in many plant developmental processes, including bud dormancy. Abscisic acid is a derivative ofm carotenoids. It was called "absicisin II" originally because it was thought to play a major role in abscission of fruits. At about the same time another group was calling it "dormin" because they thought it had a major role in bud dormancy. The name abscisic acid (ABA) was coined by a compromise between the two groups.
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