Which among the following compounds give yellow solid when reacted with $\mathrm{NaOI} / \mathrm{NaOH}$ ?

Choose the correct answer from the options given below :

Aldol condensation is a popular and classical method to prepare $\alpha, \beta$-unsaturated carbonyl compounds. This reaction can be both intermolecular and intramolecular. Predict which one of the following is not a product of intramolecular aldol condensation?

An organic compound $(\mathrm{X})$ with molecular formula $\mathrm{C}_3 \mathrm{H}_6 \mathrm{O}$ is not readily oxidised. On reduction it gives $\mathrm{C}_3 \mathrm{H}_8 \mathrm{O}(\mathrm{Y})$ which reacts with HBr to give a bromide $(\mathrm{Z})$ which is converted to Grignard reagent. This Grignard reagent on reaction with $(\mathrm{X})$ followed by hydrolysis give 2,3-dimethylbutan-2-ol. Compounds $(\mathrm{X}),(\mathrm{Y})$ and $(\mathrm{Z})$ respectively are: