Use a Double-Angle Formula to Rewrite the Expression $2 \sin x \cos x$

Multiple Choice

Use a double-angle formula to rewrite the expression. ​​ $2 \sin x \cos x$ ​

A) ​sin x
B) ​​2 sin x
C) ​​​2 sin 2x
D) ​ sin x
E) ​ sin 2x