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According to paragraph 4, all of the following are true of the food of snowshoe hares EXCEPT A. The preferred food fore hares consists of willow and birch twigs. B. High fiber food is the most nutritious for hares. C. Depletion of the supply of willow and birch twigs cause low birth and growth rates. D. The food supply takes two or three years to recover after a peak in hare population density.