Using the timeline, which of the following best explain us foreign policy during the cold war?

a) the united states only saw republican president in the 1950s, 1960s, 1970s and 1980s take stand against stopping the spread of communism.

b) the united states never wavered on their intentions to stop communism with increasing efforts throughout the 1950s, 1960s, 1970s, 1980s

c) the united states increased efforts to stop communism in the 1950s, and 1960s, eased tensions in 1970s, and saw an increase in efforts in 1980s

d) the united states saw a steady decline in efforts to stop communism through the 1950s, 1960s, 1970s, 1980s