22) Recall what life was like for the working-class citizens during this time period especially the children. Why would the artist show the children being sold away at auction as if they were some
sort of slave? Does this seem to be realistic portrayal? Why or why not?

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:

a. favoring native born americans over immigrants.