选c.because of
Tom went to work late 上班迟到了,晚了
这里的late是修饰整个句子的,后面的because of sth.表示原因
由于暴风雪,Tom上班迟到了.
而late for sth.一般是 he is late for school/ the class/ the meeting.上学迟到了,开会迟到了.