5. Which Supreme Court decision divided the nation over the issue of slavery?

A. Fugitive Slave case
B. Clay's ruling
c. Dred Scott
D. John Brown v. Ohio

C. Dred Scott

Explanation:

It can't be A B or D because The U.S. Supreme Court hands down its decision on Sanford v. Dred Scott, a case that intensified national divisions over the issue of slavery.

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: