Conservationists have established land reserves to preserve the last remaining habitat for certain species whose survival depends on the existence of such habitat. A grove of trees in Mexico that provide habitat for North American monarch butterflies in winter is a typical example of such a land reserve. If global warming occurs as predicted, however, the temperature bands within which various types of vegetation can grow will shift into regions that are currently cooler. If the statements above are true, they provide the most support for which one of the following? ['Monarch butterflies will succeed in adapting to climatic change by shortening their migration.', 'If global warming occurs as predicted, the conservation land reserves will cease to serve their purpose.', 'If global warming occurs rapidly, species of plants and animals now protected in conservation land reserves will move to inhabit areas that are currently used for agriculture.', 'The natural world has adapted many times in the past to drastic global warming and cooling.']