(i) chlorobenzene is mon-nitrated to M
(ii) nitrobenezene is mono-chlorinated to N
(iii) anisole is mono-nitrated to P
9iv) 2-nitrochlorobenzene is mon-nitrated to Q.
out of M, N, P and Q the compound that undergoes reaction with aq. NaOH fastest is
A. M
B. N
C. P
D. Q