Answer: D. Leave their homelands and move to present-day Oklahoma.
Explanation: The Indian Removal Act of 1830 was a federal law passed by the United States government that required Native American groups in the Southeast to leave their homelands and move to present-day Oklahoma. The act was part of a larger policy of Indian removal that aimed to open up more land in the Southeast for white settlement and commerce. The forced relocation of the Native American groups, known as the Trail of Tears, resulted in the death of thousands of Native Americans due to disease, starvation, and exposure. The Indian Removal Act was a traumatic event in the history of Native Americans and remains a significant part of their legacy and cultural heritage.