Do you think that the confederacy's seizure of federal forts and arsenals and their actions at fort sumter were a deliberate attempt to provoke a war. explain your answer

Explanation:

The Battle of Fort Sumter, had began to be a siege, and at the time the  newly formed Confederate States Army was in command of the forces in Charleston. The intention of this was to fire back at the United States Army, but resulted in the Civil War, that we know in history today.

yellow fever and other tropical diseases

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: