​You are considering buying a store.In order to better access your return on the investment,you must ask the storeowner for the figures on days when

A) ​Sales are high,costs are low
B) Sales are low,costs are high
C) Both sales and costs are high
D) ​All of the above

Economic cost can best be defined as

A) any contractual obligation that results in a flow of money expenditures from an enterprise to resource suppliers.
B) any contractual obligation to labor or material suppliers.
C) a payment that must be made to obtain and retain the services of a resource.
D) all costs exclusive of payments to fixed factors of production.