单项选择题

The lecture was supposed to start at eight, but it was delayed an hour.

A.讲座以为在八点钟开始,但一个小时以后就开场了。
B.讲话被认为在八点钟开始,但被延误了近一小时。
C.讲演本该在八点钟开始,但迟了一个多小时。
D.讲座本应该在八点钟开始,但被耽搁了一个小时。