For the piping system shown below, water is flowing from left to right at steady-state and constant temperature. You may assume the flow is frictionless. The pipe diameter is larger

in section A than section B. The diameters of sections A and C are the same. If gravitation and frictional effects are negligible, which of the following relationships is true about the static pressure in sections A and B? O PA < PB because pressure builds up when mass is being pushed through a smaller area PA > PB because pressure decreases as velocity increases at steady-state PA = PB because friction is assumed to be negligible