Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. Rain forest species seem unable to adapt to fires created by humans. B. Ancient charcoal remains suggest that, prior to the arrival of humans, fires occurred frequently in rain forests. C. Ancient charcoal remains in Amazon forests suggest that rain forest species adapted to the area long before the arrival of humans. D. Rain forest species appear unable to adapt to frequent fires, but evidence from the past suggests that rain forests sometimes do burn.