【单选题】

Some people have a very poor sense of direction. Unlucky, I am one of them. I have visited a place many times but I may still get lost there the next time.

When I was a little girl, I never dared ask strangers the way.And so I used to walk round in circle and hope that by chance I would get to the place I was going to.
Now, I am no longer too shy to ask people for directions, but I often receive helpless or even wrong information. So I try to avoid giving people wrong directions. If anyone asks me the way somewhere, I would say, "Sorry, I am a stranger here."
Once on my way to work I was stopped by a man. He asked me if I could tell him the way to the FriendshipBuilding. I gave him my usual reply.But just as I walked on only a few steps, I realized that he had asked the way to my office building. However, I had no time to turn back and look for him. I was rushing to meet with someone at my office and I didn’t want to keep him waiting.
When I just got to my office, the secretary showed in the man who had asked me for directions. Imagine how embarrassed I was and how surprised he was when we saw each other at the first sight!
The word "embarrassed" in the last paragraph means ______.
A、困惑B、尴尬 C、激动