`CH_(3)-underset(Cl)underset(|)(CH)-underset(CH_(3))underset(|)(CH)-CH_(3)+"Alcoholic KOH"overset(Delta)(to)`
(A) major + B (minor). A and B are:
A. 3-methyl-but-1-ene, 2-methyl-but-2-ene
B. 2-methyl-but-1-ene, 3-methyl-but-1-ene
C. 2-methyl-but-1-ene, 3-methyl-but-1-ene
D. 2-methyl-but-2-ene, 2-methyl-but-1-ene