[听力原文]
W：Excuse me，when will the 7：15 train arrive
M：It’s been delayed two hours because a bridge was broken．

What do we learn from this conversation（）

A．The train has broken down and will not arrive.
B．The train was in a terrible accident.
C．The train will probably arrive at 9: 15.
D．The man is not sure whether the train will arrive or not.