Read the following conversation and answer the question.

M: Where's Joan? She said she would be here at 3, but now it's 3:30. She must have missed the train.

W: I think so. I hope she doesn't miss the next one, otherwise she'll be late for the opening address at the conference.

Question: What's the woman worried about? 

- Joan won't come to the conference.

- Joan may be late for the opening speech.

- Joan will miss the next conference.


Joan may be late for the opening speech.