What were the three conflicts Andrew Jackson faced during his Presidency?

Andrew Jackson's presidency was from 1829 to 1837, and historians generally regard the Jacksonian Era as an extremely important period in the nation's history. The three greatest challenges President Jackson faced were the Eaton Affair, Indian Removal, and Nullification.

Explanation:

a is correct

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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: