TOEFL Reading: ETS-TOEFL阅读机经 - 3RL3PEQI81Q55H9XL$

In paragraph 2, why does the author provide the information that there is a record of a beetle larva living in dead wood for over 40 years before becoming an adult A. To help explain why insects were less likely to go extinct than other species B. To show that not all species that relied on trees disappeared during the late Cretaceous C. To suggest that insects that lived long ago had much longer life spans than those living today D. To support the claim that conditions at the end of the Cretaceous were highly unfavorable