The phenomenon called 'Apical dominance' in plants is due to a phytohormone

Auxins

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Gibberellines

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Cytokinis

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ABA

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Solution

The correct option is B Auxins
Apical dominance is the condition in which growth of the shoot apex inhibits the lateral growth of the shoot. The lower part of the shoot contains apical bud which produces auxin that inhibits the growth of lateral bud and prevents lateral growth and promotes verticle growth.

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