47. According to the passage, which of the following statements is true? (A)Most of the mammals in Madagascar can also be found on the African mainland. (B)It would have taken animals 30 to 35 days to cross the Mozambique Channel. (C)Robinson Crusoe was the first man to cross the Mozambique Channel. (D)Matthew Borths believes that it is impossible for animals to survive drifting across the sea.