[单选题]
Water flows through a pipe. The diameteb/)kx5 5ikz 0 3de tbt*..hzadx8fhm)cj0 xnbr of the pipe at point B is larger t/ yba g,sp* vap/hljzb74q --ohan at point A. Where is thesalp /,-qbpyz*jhv/4g b a 7-o speed of the water greater?
A. point A
B. point B
C. same at both A and B
D. cannot be determined from the information given
