why ^^ 5. Which of the following is the best description of an opportunity cost in a course of action? a. The expected benefit of the next best alternative course of action not undertaken b. The selling price of the assets used in the course of action c. The incremental cost in a course of action d. The replacement cost of the assets used in the course of action. 56. a cost unit is why :D a. a measure of output of work in a standard hour LA b. a unit of product or service in relation to which costs are ascertained c. the cost per hour of operating a machine TACCAF2, Peel