In blue-violet colour light:

Match the following columns:

Column-$I$	Column-$II$
$A$. Plant growth promoters	$1$. Auxin
$B$. Plant growth inhibitor	$2$. Gibberellin
	$3$. Abscisic acid
	$4$. Cytokinin

Select the correct matching for $A$ and $B$.

Plant growth substances $(PGS)$ have innumerable practical applications. Name the $PGS$ you should use to:
$(a)$ Increase yield of sugarcane.
$(b)$ Promote lateral shoot growth.
$(c)$ Cause sprouting of potato tuber.
$(d)$ Inhibit seed germination.

The movement in the leaf lobes of $Dionaea$ (Venus flytrap) is due to:

Essential oils are made of:

Which one pair is wrong $:-$