. Karim Corporation is considering two alternatives that are code-named A and B. Costs associated with the alternatives are listed below:

	Alternative A	Alternative B
Supplies costs	SAR 33 000	SAR 33 000
Assembly costs	SAR 48 000	SAR 51 000
Power costs	SAR 32 000	SAR 22 000
Inspection costs	SAR 11 000	SAR 27 000

Required: a. Which costs are relevant and which are not relevant in the choice between these two alternatives? [0.5 Mark] b. What is the differential cost between the two alternatives? [0.5 Mark]