Costs associated with two alternatives, code-named Q and R, being considered by Albiston Corporation are listed below Alternative Q Alternative R Supplies costs Power costs Inspection costs Assembly costs $70,800 $32,408 $24,000 $37,000 $76,080 $31,280 $31,280 $37,800 Required a Which costs are relevant and which are not relevant in the cholce between these two altematives? b. What is the differential cost between the two alternatives? a Supplies costs Power inspection costs Assembly costs costs b. Differential cost