Miss another class _____you will fail this course.A.but B.and C.or D.because

Miss another class _____you will fail this course.
A.but B.and C.or D.because

B.
整句意思是,再缺一次课,你这门就挂了.
这里and 是连接前后两个短句的作用,前面的行为将导致后面的结果.其他几项不符合句子意思.
整句话是个祈使句,表达一种警告的语气.可以改写条件句：If you miss another class,you will fail this course.

and
同义句：If you miss another class, you will fall this course.
很好理解了吧？