In coelacanths, a swim bladder is present, but the swim bladder is full of adipose tissue (fat), which is there on a fairly permanent basis. If such a swim bladder is used by coelacanths to affect buoyancy, then it does so in much the same way as does the
A) liver of a shark. B) physoclistus swim bladder. C) physostomus swim bladder. D) lung of a lungfish.