What happened during the Battle of Little Bighorn? Select all that apply Lt. Col. Custer advanced into American Indian territory.

The Cheyenne battled the Sioux.

The Cheyenne allied with the Sioux.

US troops and American Indian warriors were evenly matched in battle.

Custer encountered many more American Indian warriors than expected.

Custer and all his men were killed.

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.