How long did the Articles of Confederation stand as the law of the land?

On March 1, 1781, the Articles of Confederation are finally ratified. The Articles were signed by Congress and sent to the individual states for ratification on November 15, 1777, after 16 months of debate. Bickering over land claims between Virginia and Maryland delayed final ratification for almost four more years.

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:

the answer is use of support