Complete the Identity $$\frac { \sin ( 3 \theta ) } { \sin \theta } = ?$$

Multiple Choice

Complete the identity.
- $$\frac { \sin ( 3 \theta ) } { \sin \theta } = ?$$

A) $2 \sin \theta \cos \theta$
B) $\cos ( 2 \theta ) + \sin \theta \cos \theta$
C) $2 \cos ( 2 \theta )$
D) $4 \cos ^ { 2 } \theta - 1$