15. Which statement is correct for the reaction shown below? 1-chloro-2,4-dinitrobenzene + NaOH → 2,4-dinitrophenol
(A) This reaction is an electrophilic aromatic substitution.
(B) 'This reaction is a SN2 substitution.
(C) This reaction is a nucleophilic aromatic substation.
(D) Substituted benzyne is the reaction intermediate.