Click on the statement that best describes what the University of Oslo research reveals about Burger's theories.
A. It points out why Burger's assumptions about mammal species are so questionable.
B. It shows that Burger's ideas are relatively recent and still being examined for accuracy.
C. It emphasizes how Burger overlooked the ability of small animals to hide or to hibernate.
D. It illustrates the fact that some experts disagree with Burger's ideas about exceptional survivors.