Which one of the following is evidence that would contribute to the "proof" mentioned? A. Accurately dated sediment cores from a freshwater lake in the Amazon indicate that the lake's water level rose significantly during the last ice age. B. Data based on radiocarbon dating of fossils suggest that the Amazon uplands were too cold to support rain forests during the last ice age. C. Computer models of climate during global ice ages predict only insignificant reductions of monsoon rains in tropical areas such as the Amazon. D. Fossils preserved in the Amazon uplands during the last ice age are found together with minerals that are the products of an arid landscape. E. Fossilized pollen from the Amazon lowlands indicates that during the last ice age the Amazon lowlands supported vegetation that needs little water rather than the rain forests they support today.