单选题 The survey does not allow for the fact that some students are attending part-time.
【正确答案】 C
【答案解析】这项调查并没有考虑到有些学生在做兼职的情况。allow for考虑，顾及。A选项：解释。B选项：否定。C选项：考虑。D选项：承认。