I justed wanted to thank you to all of the people who have helped me on here so THANK YOU

:)

Explanation:

i mean i might not have helped but uh thanks :)

You're so welcome!

You're the best!

“You’re braver than you believe, and stronger than you seem, and smarter than you think.”

                                                                                                                 -A.A. Mine

Explanation:

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:

europe would not recognize the confederacy as an independent nation.