Water from a tap emerges vertically downwards with an initial spped of `1.0ms^-1`. The cross-sectional area of the tap is `10^-4m^2`. Assume that the pressure is constant throughout the stream of water, and that the flow is steady. The cross-sectional area of the stream 0.15 m below the tap is
A. `5.0xx10^(-4)m^(2)`
B. `1.0xx10^(-4)m^(2)`
C. `5.0xx10^(-5)m^(2)`
D. `2.0xx10^(-5)m^(2)`