Use reasoning to lead to the answer of the following question:
The police didn't pay any favors, their job was to what?
Options:
- force law
- board vessels
- arrest
- arm weapons
- direct traffic
 Reasoning process:

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
Police has the duty to force law on people so that they follow them. Therefore, the final answer is force law.