In General, How Do Presidential Elections Influence U

In general, how do presidential elections influence U.S. foreign policy?

A) Foreign governments often initiate deals with the incumbent president during elections
B) The incumbent president often tries to keep foreign policy initiatives unresolved during the elections
C) Foreign governments often initiate deals with rival candidates during elections
D) Foreign governments rarely try to do serious business with the U.S. during elections
E) There is no influence