The United States became invoked in Cuban affairs to contain the spread of communist influence from which nation? A. Mexico
B. India
C. North Korea
D. The Soviet Union

D. the Soviet Union

Explanation:

The Soveit Union supported Cuban Communists such as Fidel Castro and would later import their nukes in the country to fire at the U.S.

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 both wanted to stop protestantism, they felt a call in life and it was to strengthen the church. charles used inquisition, philip used army's, charles gave control to outsiders, philip centralized all power.

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