A uniform solid drum of radius R and mass M rolls without slipping down a plane inclined at an angle $$\theta$$. Its acceleration along the plane is

A

$$\frac{2}{3}g\sin\theta$$

B

$$\frac{1}{3}g\sin\theta$$

C

$$\frac{1}{2}g\sin\theta$$

D

$$\frac{5}{7}g\sin\theta$$