How was Kennedy’s foreign policy a reaction to the Eisenhower years?

The near advisors to Kennedy claimed that the development of Eisenhower's foreign policy was stultified, slow-moving, too dependent on brinksmanship and major retaliation, and complacent. First, Kennedy provided the green light to a 1961 Bay of Pigs invasion of Cuba launched by Eisenhower.

Explanation:

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:

a

explanation: