The Antiderivative $\int ( \cos x - \sin x ) d x$

Multiple Choice

The antiderivative $\int ( \cos x - \sin x ) d x$ is

A) $- \sin x - \cos x + C$
B) $- \sin x + \cos x + C$
C) $\sin x + \cos x + C$
D) $\frac { ( \cos x ) ^ { 2 } } { 2 } - \frac { ( \sin x ) ^ { 2 } } { 2 } + C$
E) $\frac { ( \cos x ) ^ { 2 } } { 2 } + \frac { ( \sin x ) ^ { 2 } } { 2 } + C$