TOEFL Reading: ETS-TOEFL阅读机经 - 3DJ__YYE22PK1R3TL$

According to paragraph 5, what is responsible for the relative scarcity of insects and other prey in dipterocarp forests A. The inability of insects and other prey to eat the toxic seeds, flowers, and fruits of dipterocarp trees B. The efficiency with which lizards and geckos hunt their prey C. The abundance of carnivorous animals in dipterocarp forests D. Dipterocarps' irregular flowering and fruiting cycles