An Overall Effect of the Korean War on the Cold

An overall effect of the Korean War on the Cold War was

A) the Soviet Union's domination over all of Southeast Asia.
B) the end of American and Soviet involvement in Asian political affairs.
C) the reinforcement of the American determination to "contain" Soviet power.
D) a decrease in American defense spending since the capacity of the West to win the conflict outright on the battlefield demonstrated the superiority of modern weapons systems and no need to develop new war machines.
E) the continued willingness to use limited nuclear weapons in local wars.