What idea was the major justification for u. s. foreign policy during the cold war era?

The idea of containment. During the Cold War, Communism was seen as a threat which was to be thwarted. Thus intervention abroad was justified, Harry Truman invented the "containment doctrine" which was based on the claim that "communism" had to be contained.

racism and segregation.

the correct answer is d. the monetary reserve is a set of funds represented in currency, money or similar, saved as a forecast of possible needs or for legal reasons.

the increase or decrease in the monetary base influences in the increase or decrease of the inflation rate. therefore, the excess of monetary reserve will cause the reduction of inflation.