Which of the following was a major victory by indians, led by crazy horse, over 250 u. s. soldiers, led by colonel george custer?

The battle of Little Big Horn was a major victory by Indians, led by Crazy Horse, over 250 U.S. soldiers, led by Colonel George Custer.

The Battle of the Little Bighorn, also refered to as Custer's Last Stand, is considered the most decisive Native American victory and the worst U.S. Army defeat in the long Plains Indian War. It constituted an armed engagement between forces of the Lakota, Northern Cheyenne, and Arapaho tribes and the 7th Cavalry Regiment of the United States Army.

the answer for 3 is b and the answer for 4 is d

these civilizations were located around fertile rivers, where they could produce an abundance of crops