GRE Logical Reading: ETS-GRE逻辑单题ETS - V6882Z121H92K46OJ$

Which of the following, if true, is the best criticism of the argument above? A. Abalone costs much more per pound than tuna does. B. Tuna is much easier to harvest than abalone is. C. Abalones mature so slowly that meeting market demands would exhaust the stock. D. Human beings would require the same amount of protein from either abalone or tuna. E. The average specimen of abalone is much smaller than the average specimen of tuna.