Differentiate $\mathrm { x } ) ^ { 7 }$ A) 7(sin

Multiple Choice

Differentiate.
-(sin $\mathrm { x } ) ^ { 7 }$

A) 7(sin $x ) ^ { 6 }$ cos x
B) 7 $( \cos x ) ^ { 6 }$
C) 7 $( \sin x ) ^ { 6 }$
D) 7 $( \cos x ) ^ { 6 }$ sin x