Is the u. s government preforming adequately?

In present times, the US government is in some way performing adequately. It's just that our current president have garnered some issues regarding a whole lot of stuff that caused disagreements between him and the people as well as the Constitution.

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: