A can is a hollow cylinder of radius $$R$$ and height $$h$$. Its ends are sealed with circular sheets of the same material. The can is made of thin sheet metal of areal mass density $$\sigma$$. Moment of inertia of this closed can about its vertical axis of symmetry is

A

$$\frac{\pi R^3\sigma}{3}(h+2R)$$

B

$$\frac{\pi R^3\sigma}{3}(h+R)$$

C

$$\frac{\pi R^3\sigma}{3}(2h+R)$$

D

$$\frac{2\pi R^3\sigma}{3}(h+R)$$