[单选题]
Water flows through a pipe. The diameter of th30 l t:4dx.zteet 0nqge pipe at poiu;ougv *lm5ld6zifla+ct((hl2 .d u3 f ea,i-nt B is larger than at point af(m 3 *+ti5df - l.,hudllvzuc6; eg(l2auoi A. Where 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