____________ is the condition in which our wants for ________ are greater than the limited ______________ available to satisfy those wants. People are faced with having to make choices because they live in a world characterized by __________. Because scarcity exists, a _________ is needed to decide who gets what of available resources and goods. a. Scarcity, goods, resources, shortages, choice b. Scarcity, goods, resources, scarcity, rationing device c. Abundance, services, means, scarcity, rationing device d. Efficiency, goods, resources, scarcity, rationing device