When an α-haloketone reacts with a hydroxide ion, a carboxylic acid is formed. This is known as a Favorskii reaction. Propose a suitable mechanism for the Favorskii reaction shown below. (Hint: The first step is deprotonation of the α-carbon that is not bonded to Br; the second step is the formation of a three-membered ring; and in the third step, HO⁻ acts as a nucleophile.)