According to the Treaty of Greenville, signed August 3, 1795, which of the following is true?
a. Spain agreed to limit its colonial possessions in the trans-Appalachia region to the United States
b. Great Britain agreed to abandon its forts and withdraw its forces from the Old Northwest
c. Native Americans ceded most of modern Ohio and part of Indiana in return for a federal annuity
d. Government officials vowed to keep settlers from encroaching on land reserved for Native Americans