What is the IUPAC name of the following compound?

A

4-Bromo-3-methylpent-2-ene

B

3-Bromo-3-methyl-1,2-dimethylprop-1-ene

C

2-Bromo-3-methyl pent-3-ene

D

3-Bromo-1,2-dimethylbut-1-ene