Reduction of nitroalkanes yields

Which of the following methods produces aniline?

For the following compounds,choose the incorrect option?
$CH_3-NH_2 \, \, (P)$
$Ph-NH_2 \, \, (Q)$

Identify product $B$ obtained in the following reaction: $CH_{3}CH_{2}NO_{2}$ $\xrightarrow[\Delta]{HNO_{2}} A$ $\xrightarrow{LiAlH_{4}} \text{ether} B$

Identify $B$ in the following conversion: $CH_3-I$ $\xrightarrow{KCN} A$ $\xrightarrow{Na / C_2H_5OH} B$

The major products $P$ and $Q$ from the following reactions are: