In the following reaction, identify the product D.
\(\mathrm{C}_6 \mathrm{H}_5-\mathrm{OH} \xrightarrow{\mathrm{Zn} \text { dust }} \mathrm{A} \xrightarrow{\mathrm{CH}_3 \mathrm{Cl}+\text { anhy. } \mathrm{AlCl}_3} \mathrm{~B}\)
\(\xrightarrow{\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7+\mathrm{H}_2 \mathrm{SO}_4} \mathrm{C} \xrightarrow{\mathrm{H}_2 \mathrm{SO}_4+\mathrm{HNO}_3} \mathrm{D}\)
1
o-Nitrobenzoic acid
2
p-Nitrobenzoic acid
3
o,p-Dinitrobenzoic acid
4
m-Nitrobenzoic acid