[单选题]
Water flows through a pipe. The diameter of v+)-p rap(jtv t etq)+,osbn*+ixri t j+y9c5 xhe pipe at point B is larger than bji ny+oq+irt )s,t ex*x9 c+5at point 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
