Find the volume of a hemisphere whose diameter is 6 cm. (Take $$\pi = \frac{22}{7}$$)

A

$$36\pi$$ $$cm^{3}$$

B

$$144\pi$$ $$cm^{3}$$

C

$$48\pi$$ $$cm^{3}$$

D

$$18\pi$$ $$cm^{3}$$