Please answer the question based on the following passage. You need to choose one letter from the given options, A, B, C, or D, as the final answer, and provide an explanation for your choice. Your output format should be ###Answer: [your answer] ###Explanation: [your explanation]. ###Passage:In the university, many moderate and generous teachers are good teachers, but some serious and non-sense teachers are also good teachers, and all good teachers have a common feature? they are all knowledgeable people. ###Question:If the above statement is true, which of the following statements must be true? ###Options: (A)Many knowledgeable teachers are gentle and generous. (B)Some knowledgeable teachers are serious and unsympathetic. (C)All knowledgeable teachers are good teachers. (D)Some knowledgeable teachers are not good teachers Do not include the following keywords: format, passage, d)some, people
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