Bromination of Alkene

Q. In methyl alcohol solution, bromine reacts with ethylene to yield $BrC{H}_{2}C{H}_{2}OC{H}_3$ in addition to 1, 2-dibromoethane because

1. The ion formed initially may react with $B{r}^{-}$ or $C{H}_{3}OH$
2. The methyl alcohol solvates the bromine
3. The reaction follows Markownikoff's rule
4. This is a free-radical mechanism

Q.

Assertion : Addition of bromine to trans-2-butene yields meso-2, 3-dibromobutane

Reason : Bromine addition to an alkene is an electrophilic addition.

1. If both assertion and reason are true and the reason is the correct explanation of the assertion.

2. If both assertion and reason are true but reason is not the correct explanation of the assertion.
3. If assertion is true but reason is false.
4. If the assertion and reason both are false.

5. If assertion is false but reason is true.