$A$ gardener finds some broad-leaved dicot weeds growing in his lawns. What can be done to get rid of the weeds efficiently?

  • A
    Spray $2,4-D$ ($2$,$4$-Dichlorophenoxyacetic acid).
  • B
    Spray $ABA$ (Abscisic acid).
  • C
    Spray $GA_3$ (Gibberellic acid).
  • D
    Spray $Ethylene$.

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