If you see a policeman in the street waving flashlights what are they there to do?
Options:
- jump
- arrest criminals
- book robber
- direct traffic
- wave on Let's give stream of consciousness first:

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
Flaslights are used to signal the direction of directing traffic. Street has traffic that can be directed.
Therefore, the answer is direct traffic.