• A

  $\mathrm{C}_6 \mathrm{H}_5 \mathrm{SO}_2 \mathrm{Cl}$ and $\mathrm{OH}^{-}$in $\mathrm{H}_2 \mathrm{O}$
• B

  $\mathrm{AgNO}_3$ in $\mathrm{H}_2 \mathrm{O}$
• C

  dilute HCl
• Correct answer
  D

  $\mathrm{HNO}_2$ and $\beta$-naphthol

Hence, the correct answer is option: 'D'.