Which one of the following most accurately expresses the main idea of the passage? A. Despite extensive evidence that native populations had been burning North and South American forests extensively before 1492, some scholars persist in claiming that such burning was either infrequent or the result of natural causes. B. In opposition to the widespread belief that in 1492 the Western hemisphere was uncultivated, scholars unanimously agree that naive population were substantially altering North and South American forests well before the arrival of Europeans. C. Although some scholars minimize the scope and importance of the burning of forests engaged in by native populations of North and South American before 1492, evidence of the frequency and impact of such burning is actually quite extensive. D. Where scholars had once believed that North and South American forests remained uncultivated until the arrival of Europeans, there is now general agreement that native populations had been cultivating the forests since well before 1492. E. While scholars have acknowledged that North and South American forests were being burned well before 1492, there is still disagreement over whether such burning was the result of natural causes or of the deliberate actions of native populations.