Characteristics of the above reaction is:

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(C) The reaction shown is an electrophilic aromatic substitution,specifically a diazo coupling reaction between phenol and benzenediazonium chloride i

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$C-N$ coupling reaction; Carbanion is intermediate

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(C) The reaction shown is an electrophilic aromatic substitution,specifically a diazo coupling reaction between phenol and benzenediazonium chloride in a basic medium $(pH = 10-11)$.In a basic medium,phenol exists as a phenoxide ion,which is highly activated towards electrophilic substitution.The phenoxide ion undergoes resonance,where the negative charge is delocalized onto the ortho and para positions of the benzene ring.This creates a carbanion-like intermediate at the para position,which then attacks the electrophilic nitrogen atom of the diazonium salt.This results in the formation of a $C-N$ bond,making it a $C-N$ coupling reaction.

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