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According to paragraph 4, how has the spread of agriculture affected raccoon populations? A. The spread of agriculture destroyed some of the raccoon's natural habitats and reduced their populations in Kansas and eastern Colorado. B. Because of the availability of corn and other cereal grains as a result of the spread of agriculture. C. The spread of agriculture may have contributed to some raccoon expansion but has not always caused raccoon populations to expand. D. The spread of agriculture to Kansas and eastern Colorado brought increased raccoon populations in the 1870s and 1880s.