[单选题]
Water flows through a pipe. The diams3+.thd xh,sreter of + hwg-xissh:o 1(9zy 4z-ehyjthe pipe at point B is larger than at point A. Wheyi -gzh(1e94ysx- zh:ojs hw+ re is the water pressure greatest?
A. point A
B. point B
C. same at both A and B
D. cannot be determined from the information given
