Which of the following is correct for the reaction shown?

The product $(A)$ is:

Which product is formed when the compound $C_6H_5CHO$ is treated with concentrated $KOH$ solution?

Consider the following reaction sequence:
$(CH_3)_2C=CH_2 \xrightarrow[\text{(2) } Zn/H_2O]{\text{(1) } O_3} X + Y$
$X + Y \xrightarrow[\text{(2) } \Delta]{\text{(1) dil. } NaOH} Z$
The $IUPAC$ name of '$Z$' is

The product $(B)$ in the above reaction is:

Compound $x$ having molecular formula $C_3H_6O$ is reduced by Red $P/HI$ to give compound $y$ $(C_3H_8)$. Since $x$ reduces Tollen's reagent,what is the possible structure of $x$?