The Integral $\int x \cos x d x$ Is

A) $x \sin x - \cos x + C$

Multiple Choice

The integral $\int x \cos x d x$ is

A) $x \sin x - \cos x + C$
B) $x \cos x - \sin x + C$
C) $- x \sin x + \cos x + C$
D) $x \sin x + \cos x + C$
E) $x \cos x + \sin x + C$