According to the professor, how did the American cheetah influence the pronghorn antelope during the Pleistocene epoch? A. The cheetah prevented the antelope's population from growing too large. B. The cheetah was a factor in the development of the antelope's speed. C. The cheetah dispersed the seeds of plants that the antelope needed to survive. D. The cheetah caused the antelope to migrate out of the western United States.