What does the word dominion mean in this sentence?

In alliance with the Comanches they [the Kiowa] held dominion in the southern Plains for a hundred years.

land

superiority

oversight

power

The answer is D. Power

Explanation:

In this sentence it can be understood that the word domain represents or means power; The territorial power that the Kiowa had or maintained in the southern plains for a hundred years, being in alliance with the Comanches, that is to say that the Kiowa had supremacy, in terms of strength, power or authority on the land of the southern plains.

The correct answer is power