Identify the set of reagent /reaction conditions X and Y in the following set of transformations.
CH₃CH₂−CH₂BrX−→productY→CH₃−C|BrH−CH₃.
A. X=dil.aqNaOH,20⁰C,Y=HBr/CH₃COOH,20⁰C
B. X= concentrated alcoholic NaOH,80⁰C,Y=HBr/CH₃COOH,20⁰C
C. X=dil.aqNaOH,20⁰C,Y=Br₂/CHCl₃,0⁰C
D. X=concentrated NaOH,80⁰C,Y=Br₂/CHCl₃,0∘C