$I.$ Antagonist to $GA$
$II.$ Promotes bud dormancy
$III.$ Promotes stomatal closure
$IV.$ Promotes abscission layer
Identify the hormone/s which promote/s all these events in plants and choose the correct option.

  • A
    Cytokinin
  • B
    Auxin
  • C
    Abscisic acid
  • D
    $C_{2}H_{4}$

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