GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - RL_83349JOQC1MTWJ

The passage implies which of the following about the explanation mentioned in the highlighted text? A. There are empirical findings that conflict with a presumption of the explanation. B. The explanation predicts that the effect of calorie restriction on longevity will be the greatest for the species with the highest rate of metabolism. C. The explanation predicts that the effects of calorie restriction will be uniformly positive.