The right answer will get brainiest PLZ HELP ASAP

Due to the terms of the treaties they signed after the Civil War, what happened to the slaves owned by American Indian tribes?

A.

They were granted land in western Arkansas for settlement.

B.

They became citizens of the American Indian tribes.

C.

They could not be granted emancipation due to tribal law.

D.

They were paid a stipend by the American Indian nations.