How has your understanding about slavery changed.

Slavery is bad and wrong.

After what specifically? My view of slavery has changed after reading a book by Howard Zinn explaining more on the views of the way White America destroyed its promise of democracy. Anywho, my view on slavery went from being ouch that really happened? To MY LORD We still have modern versions of this and it's very shi.tty. (pardon my language). I think my personal view on slavery is changed a lot as I've grown up!

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:

increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b