Answer:
A. federal trust land
Step-by-step explanation:
Most Native American land in the United States is owned by the federal government and held in trust for Native American tribes. This land is called federal trust land, and it is managed by the Bureau of Indian Affairs (BIA) within the U.S. Department of the Interior. The federal government holds the land in trust for the use and benefit of the tribes, but ultimate ownership remains with the government. Therefore, option A is the correct answer.
Options B, C, and D are incorrect. There is no such thing as constitutional land or federal development land, and while some land may be referred to as federal Native American land, the more commonly used term is federal trust land.