GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - X0FI1CX44YO525J5J

Which of the following, if true, most strongly indicates that the conclusion is too sweeping? A. Orcas that feed on fish almost always remain in the pod into which they were born, while orcas that feed on mammals will form new pods if the one they are in becomes too big. B. No orcas have been observed to switch back and forth between feeding on fish and feeding on mammals. C. Pods of orcas generally include at least on mother and one or two of her offspring. D. Unlike marine mammals, fish generally travel in large schools, which can provide food for large pods of orcas. E. Individuals from different pods interact frequently, and pods are small, such interaction predominantly foraging activities.