${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{O}\mathrm{H}+\mathrm{C}\mathrm{H}\mathrm{C}{\mathrm{l}}_3+\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}\to$ Salicylaldehyde the electrophile involved in the above reaction is.

• A

  Dichloromethyl cation $\left(\mathrm{C}\mathrm{H}\mathrm{C}{\mathrm{l}}_2\mathrm{ }\right)$
• Correct answer
  B

  Dichlorocarbene $\left(:\mathrm{C}\mathrm{C}{\mathrm{l}}_2\right)$
• C

  Trichloromethyl anion $\overline{\mathrm{C}}\mathrm{C}{\mathrm{l}}_3$
• D

  Formyl cation $\left(\mathrm{C}\mathrm{H}\mathrm{O}\right)$

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