GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - 23I7BA2TP3E5Z47JJ

Which of the following would most strengthen the author's argument? A. The fossilized remains of the Acanthostega are the earliest known evidence of early fish. B. The modem descendants of Acanthostega are not able to drag themselves across short distances on land. C. Biologists have found that some aquatic species can successfully drag themselves across land even though these species do not possess ankles. D. Any animal with a collapsed chest cavity is not able to survive long enough to travel even a short distance across land. E. Some evolutionary biologists believe that the new fossils are not from Acanthostega.