The major product of the following reaction is :
`CH_(3)underset(overset(|)(Br))(C)HCH_(2)underset(overset(|)(Br))(C)HCH_(2)CH_(3) underset("heat")overset(KOH, CH_(3)OH)(to)`
A. `CH_(3)CH= CH-CH=CHCH_(3)`
B. `CH_(2)=CHCH=CHCH_(2)CH_(3)`
C. `CH_(3)CH=C=CHCH_(2)CH_(3)`
D. `CH_(2) =CHCH_(2)CH=CHCH_(3)`