Which of the following statement(s) is (are) incorrect reason for eutrophication?

(A) excess usage of fertilisers

(B) excess usage of detergents

(C) dense plant population in water bodies

(D) lack of nutrients in water bodies that prevent plant growth

Choose the most appropriate answer from the options given below :

Match List - I with List - II.

	List - I Chemical Compound		List - II Used as
(a)	Sucralose	(i)	Synthetic detergent
(b)	Glyceryl ester of stearic acid	(ii)	Artificial sweetener
(c)	Sodium benzoate	(iii)	Antiseptic
(d)	Bithionol	(iv)	Food preservative

Choose the correct match :

Match List - I with List - II :

	List - I		List - II
(a)	$$[Co{(N{H_3})_6}][Cr{(CN)_6}]$$	(i)	Linkage isomerism
(b)	$$[Co{(N{H_3})_3}{(N{O_2})_3}]$$	(ii)	Solvate isomerism
(c)	$$[Cr{({H_2}O)_6}C{l_3}$$	(iii)	Co-ordination isomerism
(d)	$$cis - {[CrC{l_2}{(ox)_2}]^{3 - }}$$	(iv)	Optical isomerism

Choose the correct answer from the options given below :

The functional groups that are responsible for the ion-exchange property of cation and anion exchange resins, respectively, are :