$\frac{\sin 5 \theta}{\sin \theta}$ is equal to :

Question

( A ) $16 \cos^4 \theta - 12 \cos^2 \theta -1$
( B ) $16 \cos^4 \theta + 12 \cos^2 \theta +1$
( C ) $16 \cos^4 \theta - 12 \cos^2 \theta +1$
( D ) $16 \cos^4 \theta + 12 \cos^2 \theta -1$