Were the Radical Republicans correct in their assumptions regarding the South, or could Lincoln's approach have paved the way for a continuation of the political, social, and economic gains that African Americans had achieved during reconstruction?

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:

with my recent question

the answer should be founding brothers. i hope i you!