Explanation:

- Option:1, A rule

- Laws are rules or guidelines established by a governing authority.

- They are enforceable and mandatory for maintaining order.

- Correct Answer: This is indeed part of a law.

- Option:2, Justice

- Often associated with laws, justice is about fairness and ethical correctness.

- Laws aim to deliver justice but not all laws inherently imply justice.

- Option:3, Political

- Laws can be political in nature as they are formulated through political processes.

- They reflect the values and policies of the political system.

- Option:4, State power

- Laws are instruments of state power, used by the state to regulate behavior.

- They are enforced by governmental authorities.