Which best describes the bush doctrine of preemption? a. a foreign policy stance that ascribes to multilateral engagement for the good and protection of an allied country. b. a foreign policy stance that indicates a hierarchy in an alliance and puts the united states' interests first. c. a foreign policy stance that seeks to open markets, promote democracy, and defend weaker nations. d. a foreign policy stance that espouses a unilateral approach to protecting the best interests of the united states.