It can be inferred that the author of the passage would be most likely to agree with which of the following statements about the "early view?" A. It reflects a mistaken assumption about the means by which nonnative species are introduced into ecosystems. B. Its basic premise is shown to be valid by the effect of American gray squirrels on Britain's red squirrel population. C. It presents a simplistic picture of the means by which species composition within ecosystems is determined. D. It can effectively explain the formation of ecosystems that contain few species but cannot adequately account for the formation of complex ecosystems. E. It understates the importance of competition as a factor determining species composition within ecosystems.