Evaluate the Indefinite Integral $\int \cos ^{6} x \sin x d x$

Multiple Choice

Evaluate the indefinite integral. $\int \cos ^{6} x \sin x d x$

A) $-\frac{1}{7} \sin ^{7} x+C$
B) $\frac{1}{7} \sin ^{7} x+C$
C) $\frac{1}{7} \cos ^{7} x+C$
D) $-\frac{1}{7} \cos ^{7} x+C$
E) $\frac{1}{7} \cos ^{7} x+C$ .