Which of the following alkenes on oxidation by $KMnO_4$ in dil. $H_2SO_4$ forms adipic acid?

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R.$
Assertion $A :$ Treatment of bromine water with propene yields $1-$bromopropan$-2-$ol.
Reason $R:$ Attack of water on bromonium ion follows Markovnikov rule and results in $1-$bromopropan$-2-$ol.
In the light of the above statements,choose the most appropriate answer from the options given below:

Reagent $A$ may be:

The general formula of alkenes is:

In the presence of peroxide,hydrogen chloride and hydrogen iodide do not give anti-Markovnikov's addition to alkenes because

Among the alkenes, which one produces tertiary butyl alcohol on acid hydration?