TOEFL Reading: ETS-TOEFL阅读机经 - _T5JGW6_RO8TH9H4L$

What does paragraph 3 say about the relationship between natural selection and animals that live apart from other members of their species? A. Natural selection does not favor living apart because individuals are unable to obtain resources equal to those of group members. B. Natural selection does not favor living apart because of the intense competition for resources among individuals apart from a group. C. Natural selection favors living apart because individuals are unlikely to attract the attention of predators. D. Natural selection favors living apart because group living increases competition for limited resources of food and nesting sites.