PLEASE ANSWER SOON Who was known as the U. S. Army's top
"Indian killer" out West in the late
1800s?
A. Colonel Custer
B. Colonel Chivington
C. General Grant
D. General Sherman

answer is option A COLONNEL CUSTER

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation: