26. You observe that unplanned inventories are increasing. You predict that there will be ________.(A) a business cycle (B) an expansion(C) a trough (D) a recession

28. Which of the following are two components of the opportunity cost of using capital already ownedby the firm?(A) economic profit and normal profit(B) implicit rental rate and economic profit(C) explicit rental rate and economic costs(D) economic depreciation and forgone interest