I'll give you a question, please answer with step-by-step reasoning process. Why would children run out of a house?
Options:
- reach over
- ball stopped
- play tag
- walk
- smell smoke

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
Children do not like to smell smoke. One runs out of a house when one smells smoke. Smelling smoke is a sign of fire.
The answer: smell smoke.