How many products will be formed when the given compound undergoes decarboxylation?

In the following sequence of reactions,a compound $A$ (molecular formula $C_{6}H_{12}O_{2}$) with a straight chain structure gives a $C_{4}$ carboxylic acid. $A$ is :
$A$ $\xrightarrow{LiAlH_{4} / H_{3}O^{+}} B$ $\xrightarrow{\text{Oxidation}} C_{4} \text{ carboxylic acid}$

Write the chemical reactions for the following conversions:
$1.$ $1$-Bromopropane to Propan-$1$-ol and Propan-$2$-ol
$2.$ Ethanoic acid to Methanol

Match the formulas in Column-$I$ with their names in Column-$II$.

Column-$I$ (formula)	Column-$II$ (name)
$A$. $RCH=NH$	$i$. Diisobutyl aluminium hydride
$B$. $AlH(i-Bu)_2$	$ii$. Benzalchloride
$C$. $C_6H_5-CH(OCOCH_3)_2$	$iii$. Imine
$D$. $C_6H_5CHCl_2$	$iv$. Benzylidene diacetate

Select the $CORRECT$ increasing order of boiling points of alcohols,amines,and carboxylic acids of comparable molar mass from the following.

In the given reaction,$[X]$ will be: