听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的[A]、[B]、[C]三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你将有5秒钟的时间阅读各个小题；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。

whAt is most proBABly thEir rElAtionshipA．

[A] thEy ArE FriEnDs.

B．

[B] thEy ArE ClAssmAtEs.

C、

[C] thEy usED to BE CollEAguEs.