In 5-7 complete sentences, analyze the consequences and impacts of the Crusades, including their effects on Jewish, Muslim, and Christian populations of Europe. Make sure to state whether or not the Crusades were successful in their original mission.

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:

demand is the need and oportunity to buy a given good or service.