Match the following concerning the activity/function and the phytohormone involved:-

(a)	Fruit ripener	(i)	Abscisic acid
(b)	Herbicide	(ii)	${\mathrm{GA}}_3$
(c)	Bolting agent	(iii)	$2,4-\mathrm{D}$
(d)	Stress hormone	(iv)	Ethephon

Select the correct option from following:-

• A

  $\left(\mathrm{a}\right)-\left(\mathrm{ii}\right), \left(\mathrm{b}\right)-\left(\mathrm{iii}\right), \left(\mathrm{c}\right)-\left(\mathrm{iv}\right), \left(\mathrm{d}\right)-\left(\mathrm{i}\right)$
• B

  $\left(\mathrm{a}\right)-\left(\mathrm{iii}\right), \left(\mathrm{b}\right)-\left(\mathrm{iv}\right), \left(\mathrm{c}\right)-\left(\mathrm{ii}\right), \left(\mathrm{d}\right)-\left(\mathrm{i}\right)$
• Correct answer
  C

  $\left(\mathrm{a}\right)-\left(\mathrm{iv}\right),\left(\mathrm{b}\right)-\left(\mathrm{iii}\right),\left(\mathrm{c}\right)-\left(\mathrm{ii}\right),\left(\mathrm{d}\right)-\left(\mathrm{i}\right)$
• D

  $\left(\mathrm{a}\right)-\left(\mathrm{iv}\right),\left(\mathrm{b}\right)-\left(\mathrm{ii}\right),\left(\mathrm{c}\right)-\left(\mathrm{i}\right),\left(\mathrm{d}\right)-\left(\mathrm{iii}\right)$

Hence, the correct answer is option: 'C'.