Read the following conversation and answer the question.

W: You look like you are freezing to death. Why don't you put this on?

M: Thank you, it was so warm at noon, I didn't expect the weather to change so quickly.

Question: What do we learn from the conversation? 

- The woman didn't expect it to be so warm at noon.

- The weather turned cold all of a sudden.

- The weather forecast was unreliable.


The weather turned cold all of a sudden.