44 john kennedy’s foreign policy differed from eisenhower’s as it was based on the concept of

a) containment

b) good neighbor policy

c) détente

d) flexible response

e) brinkmanship

The idea of "flexible response," initiated by the Kennedy administration in 1961, was to be able to respond to to military aggression in ways appropriate to each situation.  Flexible response meant using conventional weapons and methods as appropriate rather than relying on a nuclear arsenal as the USA's primary deterrent in dealing with adversaries.

This was a reaction over against the brinkmanship that had developed under the Eisenhower administration, with the threat of massive retaliation against anyone who threatened the US.  John Foster Dulles, Secretary of State under President Eisenhower, had developed the strong approach, going further than the containment policy of the previous administration (of Pres. Truman).  In 1956, Dulles described brinkmanship as "the ability to get to the verge without getting into the war is the necessary art."  He wasn't afraid to threaten massive retaliation against communist enemy countries as a way of intimidating them.

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

he was in office from 1929 to 1933 and served as a reform governor, promoting programs to combat the economic crisis besetting the united states at the time. in the 1932 presidential election, roosevelt defeated republican president herbert hoover in a landslide.

explanation: