GRE Reading Comprehension: ETS-GRE阅读ETS - 7WWUYD8YG9Z5PL057

The author mentions the results of flotation experiments on plant seeds most probably in order to A. support the claim that the distribution of plants in Hawaii is the result of the long-distance dispersal of seeds B. lend credibility to the thesis that air currents provide a method of transport for plant seeds to Hawaii C. suggest that the long-distance dispersal of seeds is a process that requires long periods of time D. challenge the claim that ocean currents are responsible for the transport of plant seeds to Hawaii E. refute the claim that Hawaiian flora evolved independently from flora in other parts of the world