$CH_3-CH_2-CH_2-CH_2-C(CH_3)_2-CH_2-OH \xrightarrow[\Delta]{H^{+}} (A) \text{ (major)}$. Product $(A)$ is

Propene on treatment with $HBr$ gives

Product $(A)$ is

The correct statement$(s)$ for the following addition reactions is(are):
$(i)$ $trans-but-2-ene \xrightarrow{Br_2/CHCl_3} M \text{ and } N$
(ii) $cis-but-2-ene \xrightarrow{Br_2/CHCl_3} O \text{ and } P$
[$A$] ($M$ and $O$) and ($N$ and $P$) are two pairs of diastereomers
[$B$] Bromination proceeds through trans-addition in both the reactions
[$C$] $O$ and $P$ are identical molecules
[$D$] ($M$ and $O$) and ($N$ and $P$) are two pairs of enantiomers

$CH_3-CH_2-CH=CH_2 \xrightarrow[CCl_4]{Br_2} \text{Product}$

When an alcoholic solution of ethylene dibromide $(Br-CH_2-CH_2-Br)$ is heated with granulated zinc,the compound formed is: