In the years after World War II, a major result of United States foreign policy was that the United States A. became a superpower with a temporary monopoly on atomic weapons B. acquired a number of colonies in Africa C. declined to become involved with the United Nations D. refused to help its former allies rebuild their economies

A

Explanation:

Being the only ones to use nuclear weapons, they KNOW the effects. And since they know that, some control and restraint must be put on such weapons.

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.

answer; i believe its (cpr);