Read the following statements regarding $\text{PGRs}$:
$A.$ Ethylene also promotes root growth and root hair formation.
$B.$ Natural cytokinins are synthesized in regions where rapid cell division occurs.
$C.$ $2,4-D$,widely used to kill monocotyledonous weeds,does not affect mature dicotyledonous plants.

  • A
    only $A$ is correct
  • B
    only $B$ is incorrect
  • C
    only $C$ is incorrect
  • D
    Both $A$ and $C$ are incorrect

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