Which tribe agreed to cede their Mississippi lands in the 1820 Treaty of Doak's Stand? A. the Cheyenne
B. the Cherokee
C. the Osage
D. the Choctaw

D. the choctaw

Explanation:

The Treaty of Doak's Stand was signed by the Choctaw Indians on 18 October 1820 and ratified by the United States on 8 January 1821. ... The treaty prohibited whiskey trade and provided for the establishment of police force in the Choctaw Nation.

your answer would be (a)

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