An alkane (mol. Wt. = 86) on bromination gives only two monobromo derivatives (excluding stereoisomers). The alkane is:
A. `CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(2)-CH_(2)-CH_(3)`
B. `CH_(3)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C)-CH_(2)-CH_(3)`
C. `CH_(3)-underset(CH_(3))underset(|)(CH)-underset(CH_(3))underset(|)(CH)-CH_(3)`
D. `CH_(3)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C)-CH_(3)`