Two balls are projected from the top of a cliff with equal initial speed $$u$$. One starts at angle $$\theta$$ above the horizontal while the other starts at angle $$\theta$$ below. Difference in their ranges on ground is

A

$$\frac{u^2}{g}\tan\theta$$

B

$$\frac{u^2}{2g}\sin 2\theta$$

C

$$\frac{u^2}{g}\sin 2\theta$$

D

$$\frac{u^2}{g}\cos 2\theta$$