<em><u>Answer:</u></em>
D) to preserve Native American culture and fight further U.S. expansion.
<em><u>Explanation:</u></em>
Frightened by the developing infringement of whites hunching down on Native American grounds, Tecumseh started a coordinated campaign to convince the Indians of the Old Northwest and Deep South to join together and resist.
Together the different clans had enough strength to prevent the whites from taking further land. Cheered by this message of expectation, Indians from as far away as Florida and Minnesota responded to Tecumseh's call. By 1810, he had organized the Ohio Valley Confederacy, which joined Indians from the Shawnee, Potawatomi, Kickapoo, Winnebago, Menominee, Ottawa, and Wyandot countries.