Water is flowing continuously from a tap having an internal diameter $$8 \times 10^{-3} \, \text{m}$$. The water velocity as it leaves the tap is $$0.4 \, \text{ms}^{-1}$$. The diameter of the water stream at a distance $$2 \times 10^{-1} \, \text{m}$$ below the tap is close to:

A

$$7.5 \times 10^{-3} \, \text{m}$$

B

$$9.6 \times 10^{-3} \, \text{m}$$

C

$$3.6 \times 10^{-3} \, \text{m}$$

D

$$5.0 \times 10^{-3} \, \text{m}$$