Puerto Rico was neither a state nor a territory. However, the Foraker Act of 1900 granted a limited degree of popular government to the Puerto Ricans. Puerto Rico is still an American territory today. What other territories did America acquire during this era? Why were they desired?

I don't know sorry I hope you find what your looking for

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: