Saalfrank Corporation is considering two alternatives that are code-named M and N. Costs associated with below: Supplies costs Assembly costs Power costs Inspection costs Alternative M $82,000 $50, eee $30,000 $43,000 Alternative $69,000 $50,000 $45,500 $32,000 Required: a. Which costs are relevant and which are not relevant in the choice between these two alternatives? b. What is the differential cost between the two alternatives? a Supplies-costs Assembly costs Power costs Inspection costs b. Differential cost