TOEFL Reading: ETS-TOEFL阅读机经 - B263F23F8865FK73L$

Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. The hunter or hunters are interested only in seizing their prey and not in any of the rest of the grazers in the herd. B. Because the hunters must concentrate on eating once they make a kill, the rest of the herd can then stop running and resume grazing. C. Once the hunters finish eating their prey, they lose interest in the rest of the herd that was left behind. D. Because they must also concentrate on eating, herd animals resume grazing as soon as the hunter or hunters seize their prey.