Correct structure of $\mathrm{\gamma }$-methylcyclohexane carbaldehyde is

Consider the above reaction, the product $\mathrm{X}$ and $\mathrm{Y}$ respectively are :

Consider the above chemical reaction and identify product $\mathrm{A}$

Considering the above chemical reaction, identify the product $\mathrm{X}:$

In the above reaction, the structural formula of (A), "X" and "Y" respectively are :

The product "A" in the above reaction is:

In the above reaction, the reagent "$A$" is :