What additional purpose did forts, such as fort gibson and fort towson, serve after the indian removal act was passed in 1830? a. they prevented trade between native americans and whites. b. they doubled up as schools to educate native americans. c. they displaced native american tribes fight other tribes. d. they protected native americans who had migrated from the east.

Hello, Your answer is D. They protected Native Americans who had migrated from the East. Fort Gibson and Fort Towson were built as a place were soilders were stationed to defend a city or town also called as Garrisons. The soilders at thease forts had to deal with the Indians who were comeing from the East. They were also assigned to gaurd the American Frontier and the Indian Territory. I hope that helped please mark me as brainliest thank you and have the best day ever!

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