Answer:Option 3 - Maintain a Military Force and Option 4 - Developing a System of Writing, as well as other public works projects and services.
Explanation:In ancient civilizations such as Mesopotamia, taxes were used to support the government in a number of ways.
Option 3 - Maintaining a Military Force: Taxes were used to support the military, which was critical to the defense of the state and the protection of its citizens. The military was also often used for imperial expansion, so having a well-funded military was crucial to the growth and success of the civilization.
Option 4 - Developing a System of Writing: Taxes were also used to support the development of cultural and educational institutions, including the development of a system of writing. This was important for preserving history, recording laws and commerce, and transmitting knowledge and ideas.
In addition to these two options, taxes were used to support a wide range of public works projects, including the construction of roads, canals, and other infrastructure, as well as the maintenance of temples, palaces, and other public buildings. Taxes also helped support public services such as law enforcement, health care, and education, which were critical to the functioning of the state and the well-being of its citizens. By using taxes to support these various functions, ancient civilizations were able to develop and sustain themselves over time.