英语翻译According to their latest paper published in Nature,the

英语翻译
According to their latest paper published in Nature,the biomass of large predators (animals that kill and eat other animals) in a new fishery is reduced on average by 80% within 15 years of the start of exploitation.In some long-fished areas,it has halved again since then.
请问根据这段话,这道题选哪个
32.We can infer from Dr.Myers and Dr.Worm’s paper that ________.
[A] the stock of large predators in some old fisheries has reduced by 90%
[B] there are only half as many fisheries as there were 15 years ago
[C] the catch sizes in new fisheries are only 20% of the original amount
[D] the number of larger predators dropped faster in new fisheries than in the old