Racemic mixture is obtain in which substrate when it is treated with `CH_(3)OH`
A. `CH_(3)-underset(underset(H)|)overset(overset(H)|)(C)-CH_(2)-Cl`
B. `CH_(3)-underset(underset(H)|)overset(overset(CH_(3))|)(C)-CH_(2)-Cl`
C. `CH_(3)-underset(underset(D)|)overset(overset(CH_(2)CH_(3))|)(C)-CH_(2)-Cl`
D. `CH_(3)-underset(underset(H)|)overset(overset(CHCH_(3))|)(C)-CH_(2)-Cl`