Question

question 1-1
what event is described in this diagram?
chief sitting bull and crazy horse lead the lakota off their reservation.
the u.s. army is sent to force the lakota, cheyenne, and arapaho back to their reservations.
sitting bull and crazy horse defeat the u.s. army.
the battle of sioux falls
the sand creek massacre
the battle of little bighorn
the wounded knee massacre

Explanation:

The Battle of Little Bighorn involved Chief Sitting Bull and Crazy Horse leading Lakota off - reservation, the U.S. Army being sent to force tribes back, and the tribes defeating the U.S. Army. The other events do not match this sequence. The Sand Creek Massacre was a different violent event against Native Americans, the Wounded Knee Massacre was a later tragic event, and there is no major 'Battle of Sioux Falls' related to this context.

Answer:

C. The Battle of Little Bighorn