Which direction did terry's and clusters armies move to encounter the native american camp

The Battle of the Little Bighorn was fought along the ridges, steep bluffs, and ravines of the Little Bighorn River, in south central Montana on June 25-26, 1876. The combatants were warriors of the Lakota Sioux, Northern Cheyenne, and Arapaho tribes, battling men of the 7th Regiment of the U.S. Cavalry. The Battle of the Little Bighorn has come to symbolize the clash of two vastly dissimilar cultures: the buffalo/horse culture of the northern plains tribes, and the highly industrial/agricultural based culture of the U.S., which was advancing primarily from the east coast. This battle was not an isolated soldier versus warrior confrontation, but part of a much larger strategic campaign designed to force the capitulation of the nonreservation Lakota and Cheyenne.

d is the right answer