With Respect to Osmoregulation, Marine Bony Fishes Do Not

With respect to osmoregulation, marine bony fishes do not

A) produce urine that is less concentrated than their extracellular fluids.
B) maintain extracellular fluids at one-third to one-half the osmolarity of seawater.
C) absorb some ions from their gut that they take in.
D) actively excrete NaCl across gill membranes.
E) produce little urine.