The graph which represents the following reaction is:

${\left({\mathrm{C}}_6{\mathrm{H}}_5\right)}_3\mathrm{C}-\mathrm{Cl}\frac{{\mathrm{OH}}^{-}}{\mathrm{Pyridine}}{\left({\mathrm{C}}_6{\mathrm{H}}_5\right)}_3\mathrm{C}-\mathrm{OH}$

Identify the reagent(s) '$\mathrm{A}$' and condition(s) for the reaction :

The structure of $\mathrm{X}$ is:

The major product of the following reaction is:

Major product of the given reaction is: