_______ you feel too ill to go out. I would rather not stay at h

_______ you feel too ill to go out. I would rather not stay at home tonight.
A、Because
B、Although
C、Unless
D、If
【正确答案】：C
【题目解析】：这句话的意思是“除非你病的无法出门了，要不然我还是不情愿呆在家里”。Unless除非，although虽然，if如果，because因为。因此C正确