試題詳解

3. You own a building that has four possible uses: a cafe, a craft store, a hardware store, and a bookstore. The building's value in each use is $2,000； $3,000； $4,000； and S5,000, respectively. You decide to open a hardware store. The opportunity cost of using this building for a hardware store is:
(A) $2,000, the value if the building is used as a cafe.
(B) $3,000, the value if the building is used as a craft store.
(C) $10,000, the sum of the values if the building is used for a cafe, a craft store, or a bookstore.
(D) $1,000, the difference in value if the building were used as a bookstore and its actual use.