2) You own a building that has four possible uses: a cafe, a craft store, a hardware store, and a bookstore. The value of the building in each use is $2,000; $3,000; $4,000; and $5,000, 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) $5,000, the value if you rented the building to someone else to use as a bookstore. 3) At the point where total product is maximized, marginal product A) is zero, but average product is still positive. B) and average product are negative. C) is positive, but average product is negative. D) and average product are positive.