Which of the following undergoes the mustard oil reaction?

In this reaction

 , $\mathrm{D}$ would be:

${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NH}}_2+{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{COCl}⟶{\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NHCOC}}_6{\mathrm{H}}_5+\mathrm{HCl}.$ This reaction is called:

${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{N}}_2\mathrm{Cl}\stackrel{{\mathrm{SnCl}}_2/\mathrm{HCl}}{\to }\left(\mathrm{A}\right)\stackrel{{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{CHO}}{\to }\left(\mathrm{B}\right)$

The product $\left(\mathrm{B}\right)$ in the above sequence of reaction is

Observe the following reaction and determine True statement

Correct options for the following reaction is / are

Which of the following statement is CORRECT about product?