[Solved] Which of the following statements is LEAST-Likely true? A) The first few minutes of an engine's operation are critical to its long life. B) A new part might look quite smooth to the naked eye. Compared to a used, worn-in part, however, it is quite rough. C) Heavy engine loads should be encouraged during break-in. D) Moving parts are continuously separated by a film of oil; only the peaks on rough surfaces touch. Opportunity Costs: Making a choice results in the loss of potential profit that could have been earned from choosing differently. Increasing Opportunity: In economic terms, refers to the increasing cost associated with producing additional units of a good, implying that producing more of one good requires sacrificing increasingly larger amounts of another good. Production Possibilities: The various combinations of goods and services that can be produced by an economy given its available resources and technology, illustrating potential trade-offs and efficiency. Comparative Advantage: An economic principle that states a country should produce and export goods for which it is more efficient at producing than other countries, and import goods that it is less efficient at producing.