The leaf of $Mimosa$ $pudica$ droops down upon touching due to:

$I.$ The increased growth per unit time is termed as $A$.
$II.$ Abscisic acid $B$ the stomata.
Choose the correct option and fill in the blanks.

Study the following statements.
$I.$ "$X$" hormone promotes root growth and root hair formation, thus helping the plants to increase their absorption surface.
$II.$ "$Y$" hormone induces flowering in mango and also promotes rapid internode/petiole elongation in deep-water plants, hence helping leaves or upper parts of the shoot remain above water.
$III.$ "$Z$" hormone inhibits seed germination, increases the tolerance of plants to various stresses, and plays an important role in seed development, maturation, and dormancy.
Identify the correct names of hormones marked as $X$, $Y$, and $Z$.

Match column $I$ with column $II$ and select the correct option:

Column $I$ (Precursor/Term)	Column $II$ (Associated Hormone)
$(a)$ Tryptophan	$(i)$ Cytokinin
$(b)$ Mevalonic acid	$(ii)$ Abscisic acid
$(c)$ Kinetin	$(iii)$ Gibberellins
$(d)$ Dormin	$(iv)$ Auxin

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

Tendrils exhibit/twining of tendrils is due to