The drug shown is boiled with excess aqueous NaOH, then the cooled mixture is acidified with dilute HCl. Which structure shown is the aromatic compound that separates?

The compound shown is aspirin. NaOH hydrolyses the ester and forms the disodium salt of salicylic acid (plus sodium acetate). Acidification re-protonates both groups, so salicylic acid is released and separates as a solid. Aspirin is not regenerated, no decarboxylation to phenol occurs, and the anion is not present after acidification.