Stream of consciousness rationale: A person leaves home in early morning. The only time to leave was early morning as Sarah had been home all evening.
The question and answer pair are described below.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Q: Sarah thought that she had been home all evening. That meant that the only time to leave was when?
Options:
- early morning
- day time
- night
- afternoon
- daytime
A: early morning