Organic Compounds Containing Oxygen: JEE Main 2025 Chemistry question

An organic compound (X) with molecular formula $\mathrm{C_3H_6O}$ is not readily oxidised. On reduction it gives $\mathrm{C_3H_8O}$ (Y) which reacts with HBr to give a bromide (Z) which is converted to Grignard reagent. This Grignard reagent on reaction with (X) followed by hydrolysis give 2,3-dimethylbutan-2-ol. Compounds (X), (Y) and (Z) respectively are: