Guess what , I ' m not in shape , and I walked there and back . It was 5:30 by the time I got to campus , and after seven by the time I got back . Really , when I did finally get to campus , I did n't do anything because I do n't know where anything is , and I was pretty darn exhausted . All I did on campus was use a drinking fountain and call my brother and rest on a lawn .
According to the above context, choose the best option to answer the following question.
Question: Why is the narrator so tired ?
Options:
- They were studying all night at the campus library .
 - They are not in great physical condition .
 - They went to the campus library and studied all night .
 - None of the above choices .


They are not in great physical condition .