Decreasing order of reactivity towards electrophilic substitution for the following compounds is :

Compound $$\mathrm{A}$$ from the following reaction sequence is:

Match List I with List II

1 - Bromopropane is reacted with reagents in List I to give product in List II

	LIST I - Reagent		LIST II - Product
A.	$$\mathrm{KOH}$$ (alc)	I.	Nitrile
B.	$$\mathrm{KCN}$$ (alc)	II.	Ester
C.	$$\mathrm{AgNO_2}$$	III.	Alkene
D.	$$\mathrm{H_3CCOOAg}$$	IV.	Nitroalkane

Choose the correct answer from the options given below:

In the reaction given below

'B' is