Which of the following is a plant hormone?

Plant movement in response to diffuse stimulus of light is

What causes the movement of leaves in the $Mimosa$ $pudica$ plant?

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.

Coiling of garden pea tendrils around any support is an example of

Differentiate between the following plant growth regulators:
$(1)$ Auxins $(IAA)$ and Abscisic acid $(ABA)$
$(2)$ Gibberellins and Ethylene