Match the reactions in List-I with the features of their products in List-II and choose the correct option.
 

	List-I		List-II
(P)	$\begin{array}{c}\text{ (-)-1-Bromo-2-ethylpentane }\\ \text{ (single enantiomer) }\end{array}\underset{{\mathrm{S}}_{\mathrm{N}}2\text{ reaction }}{\overset{\mathrm{aq}\cdot \mathrm{NaOH}}{\to }}$	(1)	Inversion of configuration
(Q)	$\underset{ (\mathrm{single} \mathrm{enantiomer})}{(-)-2-\mathrm{Bromopentane}} \underset{{\mathrm{S}}_{\mathrm{N}}2\text{ reaction }}{\overset{\text{ aq. }\mathrm{NaOH}}{\to }}$	(2)	Retention of configuration
(R)	$\underset{ (\mathrm{single} \mathrm{enantiomer})}{(-)-3-\mathrm{Bromo}-3-\mathrm{methylhexane}}\underset{{\mathrm{S}}_{\mathrm{N}}1\text{ reaction }}{\overset{\text{ aq. }\mathrm{NaOH}}{\to }}$	(3)	Mixture of enantiomers
(S)		(4)	Mixture of structural isomers
		(5)	Mixture of diastereomers

	(P)	(Q)	(R)	(S)
(1)	1	2	5	3
(2)	2	1	3	5
(3)	1	2	5	4
(4)	2	4	3	5