Which statement is correct about the molecule shown?
It reacts with HBr\text{HBr}HBr in an electrophilic substitution reaction.
It reacts with NaBH4\text{NaBH}_4NaBH4 in a nucleophilic addition-elimination reaction.
It reacts with ethanolic KOH\text{KOH}KOH in an elimination reaction.
It reacts with KCN\text{KCN}KCN in a nucleophilic substitution reaction.