Answer:
The correct option is: Maintain a Military Force (Option 3).
Step-by-step explanation:
In ancient civilizations like Mesopotamia, taxes were used to support the government in various ways, including maintaining a military force. This was necessary to ensure the security and stability of the state, protect against external threats, and enforce laws and regulations. The military force was also essential for the defense of trade routes and the acquisition of resources, which helped to sustain the civilization. Thus, taxes were a critical source of funding for the military, enabling the government to provide security and stability for its citizens.