Context: Paper everywhere . It kept him from making trouble in other ways though , which was my goal in the first place . So I ' ve ended up staying up , exhausted , watching the laurel and hardy all day thing that tcm is having .

Question: What may be the reason why they just stayed up ?
Options:
0. None of the above choices .
1. Because they were up late cleaning the paper .
2. Because they had a lot of studying to do .
3. Because they have insomnia .
Answer: 1