Nicklin Corporation is considering two alternatives that are, code-named M and N. Costs associated with the alternatives are listed below: Supplies costs Assembly costs Power costs Inspection costs Alternative M $62,000 $40,000 $20,000 $33,000 Alternative N $59,000 $40,000 $30,500 $22,000 Required a. Which costs are relevant and which are not relevant in the choice between these two alternatives? Supplies costs Assembly costs Power costs Inspection costs b. What is the differential cost between the two alternatives