Water flows through a horizontal tube as shown in the figure. The difference in height between the water colunms in vertical tubes is 5 cm and the area of cross-sections at A and B are $$6cm^{2}$$ and $$3cm^{2}$$ respectively. The rate of flow will be ____ $$cm^{3/s}$$. $$(take g=10m/s^{2})$$

A

$$200\sqrt{3}$$

B

$$100\sqrt{3}$$

C

$$\frac{200}{\sqrt{3}}$$

D

$$200\sqrt{6}$$