During Dialysis

During dialysis,

A) the chemical composition of the dialysate does not affect the movement of solutes across the semipermeable membrane.
B) bicarbonates are added to a dialysate for a person with acidosis.
C) a substance will diffuse out of the blood when its concentration is higher in the dialysate than in the blood.
D) the dialysate contains no urea or potassium.
E) osmosis alone is an efficient process for removing fluids.