What is the nature of an aqueous solution of methylamine?

Identify the $CORRECT$ decreasing order of solubilities of alcohols,alkanes,and amines in water having comparable molar mass.

Given below are two statements:
Statement $I$: Heating benzamide with bromine in an ethanolic solution of sodium hydroxide will give benzylamine.
Statement $II$: Nitration of aniline with $HNO_3/H_2SO_4$ at $288 \ K$ produces $m$-nitroaniline in higher amount than $o$-nitroaniline (pH adjusted).

The end product of the reaction $C_2H_5NH_2$ $\xrightarrow{HNO_2} A$ $\xrightarrow{PCl_5} B$ $\xrightarrow{KCN} C$ is

Which of the following isomers has the highest boiling point?

Choose the correct option.