Final answer:
The student's question pertains to a shift from point U to V on a production possibilities curve, reflecting a country's trade-off between producing sweaters and apples. Without specific data for points U and V, a definitive answer can't be given, but generally, such a move indicates giving up some amount of apples to produce more sweaters, represented by the curve's opportunity cost.
Step-by-step explanation:
The movement from point U to point V on a production possibilities curve represents a trade-off between two different goods, in this case, sweaters and apples. While the specifics of points U and V are not provided in the details, the concept of the production possibilities curve implies that moving between points involves giving up some amount of one good to produce more of the other. The general principle involves the opportunity cost, which is the cost of forgone production of one good when production resources are reallocated to produce more of another good.
Without specific numbers associated with points U and V, the answer to the question cannot be definitive. However, generally speaking, if moving along the curve leads to the production of more sweaters and fewer apples, then the society is giving up bushels of apples to get more sweaters. The opportunity cost is quantified by the slope of the curve at any given point.