TOEFL Reading: ETS-TOEFL阅读机经 - E3K57LLC05ER6M73L$

According to paragraph 2, what is true about much of the Amazon region A. It has tree species that adjust their pollination to rainfall. B. It has not yet been harvested or cleared. C. It has trees that typically flower during periods of rain. D. It does not have separate wet and dry seasons.