Consider ideal flow of water through a pipe with its axis horizontal. A and B are the two points in the pipe at the same horizontal level(A lies on the upstream), then

• A

  The pressures at A and B are equal for any shape of the pipe

• B

  The pressure are never equal

• C

  The pressure are equal if the pipe has a uniform cross-section

• D

  The pressure at A is always more than that at B.