How did jefferson earn a living? a) he was a merchant and owned a store in new orleans. b) he practiced law and owned a plantation, which made a profit by using slave labor. c) he earned money as a farmer and trader in the west. d) he was a famous musician in virginia.

The answer is B.

He learned law to become a lawyer then owned a plantation C: B)

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:

d. she conquered the black sea coast and parts of poland.