Reaction of phenol with NaOH followed by heating with `CO_(2)` under high pressure , and subsequent acidification gives compounds X as the major product , which can be purified by steam distillation . When reacted with acetic anhydride in the presence of a trace amount of conc. `H_(2)SO_(4)` compound X produces Y as the major product .
Compound Y is

Options

A.

B.

C.

D.