Yesterday I posted my agenda . I did n't hit one of my goals . When I got home and the kid took a nap ... so did I. Well , I read Harry Potter and rested on the couch .
According to the above context, choose the best option to answer the following question.
Question: Why did the narrator take a nap ?
Options:
- None of the above choices .
 - They did n't want to wake the kids .
 - They were tired out because of their busy schedule .
 - They did n't want to get behind on their agenda .


They were tired out because of their busy schedule .