An aqueous solution of X is added slowly to an aqueous solution of Y as shown in List J. The variation in conductivity of these reactions is given in List II. Match List I with List II and select the correct answer using the code given below the lists:

A

P-3, Q-4, R-2, S-1

B

P-4, Q-3, R-2, S-1

C

P-2, Q-3, R-4, S-1

D

P-1, Q-4, R-3, S-2