Context: I like to take a hour or two to fully wake up and drink my several cups of coffee . I do n't like answering questions or making decisions until I feel that I am fully awake . By 10 AM , I am usually ready to start doing things around the house and get my day started . That is my natural biorhythm .

Question: What may be your reason for waiting until 10 AM to do things ?
Options:
0. I need to get some caffeine in me .
1. Everyone else wakes up at about 10 .
2. None of the above choices .
3. I never fully wake up .
Answer: 0