Which statements about the equation of continuity for fluid flow are correct?

Select all that apply

• Option A

  For steady flow through a stream tube, the general mass-flow relation is ρAv = constant.

• Option B

  For incompressible steady flow, the relation reduces to Av = constant.

• Option C

  The equation of continuity follows from conservation of mass.

• Option D

  At a branched junction in steady flow, total mass-flow rate entering equals total mass-flow rate leaving.