A large drum having radius R is spinning around its axis with angular velocity $$\omega$$, as shown in figure. The minimum value of $$\omega$$ so that a body of mass M remains stuck to the inner wall of the drum, taking the coefficient of friction between the drum surface and mass M as $$\mu$$, is :

A

$$\sqrt{\frac{g}{\mu R}}$$

B

$$\sqrt{\frac{2g}{\mu R}}$$

C

$$\sqrt{\frac{g}{2\mu R}}$$

D

$$\sqrt{\frac{\mu g}{ R}}$$