Dialogue:

W: Why are you so late? We've been waiting almost an hour and a half.

M: I'm terribly sorry. Just as I was leaving, Mr Smith asked me to send a telegram for him. The post office was crowded and I was in line for an hour. Then I raced straight here.

Question: How long did the man travel after leaving the post office? 

- About an hour.

- Two and a half hours.

- About half an hour.


About half an hour.