Which implication for action for savvy managers emerges from this case study? a. Savvy managers understand that successful exports are valuable, unique, and hard-to-imitate products generated by certain firms from a nation. b. Managers must constantly monitor and nurture the current comparative advantage of a location and take advantage of new promising locations. c. Managers must be politically active to demonstrate, safeguard, and advance the gains from trade and pay attention to the pains from trade. d. In international trade, the savvy manager's number-one job is to leverage comparative advantage of world-class locations