What is the value of 

$$\cos [\frac{(180 - \theta)}{2}] \cos [\frac{(180 - 9\theta)}{2}] + \sin [\frac{(180 - 3\theta)}{2}] \sin [\frac{(180 - 13\theta)}{2}]?$$

A

$$sin 2\theta \sin 4\theta$$

B

$$\cos 2\theta \cos 6\theta$$

C

$$\sin 2\theta \sin 6\theta$$

D

$$\cos 2\theta \cos 4\theta$$