[单选题]
Liquid flows through a pipe of diameter 3.0 cm at 2.0 m/s. d dc2;tfjz9 )yt24-vbc q nj4-ri;5caj yk :el Fii4;+lgn x e*qcxsn:5m o-xld3 nd the flow rate.
A. $1.4 \times 10^{-3} \; m^{3}/s$
B. $5.7 \times 10^{-3} \; m^{3}/s$
C. $14 \; m^{3}/s$
D. $57 \; m^{3}/s$
