How do world issues affect U.S. foreign policy?
a. as its economy has weakened, the U.S. has stopped using economic sanctions.
b. depending on the issue, the U.S. might reply with diplomacy, trade, economic sanctions, or military force.
c. most world problems require a quick mobilization of the U.S. military,
d. the U.S. retains its tradition of rarely engaging in world affairs.