The phrase transcontinental nation refers to the united states spanning from the a. carribean sea to hudson bay b. gulf of mexico to the great lakes atlantic ocean to the pacific ocean

The correct answer is C) the Atlantic Ocean to the Pacific Ocean.

The phrase transcontinental nation refers to the United States spanning from the Atlantic Ocean to the Pacific Ocean.

The United States has a large territorial extension that has seas in the West and the East. When the term "transcontinental" is applied, this means that the territory expands from one point on the coast of an ocean to the other extreme. In this case, The phrase transcontinental nation refers to the United States spanning from the Atlantic Ocean to the Pacific Ocean. This was also the case when naming the Transcontinental Railroad that connected the East coast of the United States with the West Coast in the Pacific Ocean.

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:

they made rome the dominant power in the mediterranean.