Match the plant growth regulators (PGRs) with their discovery or function:

	Column A PGRs		Column B Discovery or Function
1	Auxin	A	Promotes cytokinesis, identified from tobacco cell culture
2	Gibberellic acid	B	Accelerates fruit ripening, discovered from the interaction of ripened oranges and bananas
3	Cytokinin	C	Isolated from coleoptiles of oat seedlings and involved in phototropism
4	Abscisic acid	D	Identified as causing the ‘bakanae’ disease in rice seedlings
5	Ethylene	E	Identified as Inhibitor-B, abscission II, and dormin before being named

	1	2	3	4	5
1	C	D	A	E	B
2	A	D	C	E	A
3	C	D	E	A	B
4	B	C	D	A	E