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A store acquires products from four (4) suppliers. Delivery via each of the possible routes and cost per unit are given below. Which route should be taken to have the lowest acquisition cost? Solve the problem using the East-West Corner Model and Minimum Entry Model to determine which route should be taken. Suppliers M1 M2 M3 M4 Supplied Units S1 $100 $90 $50 $60 80 S2 80 70 40 80 50 S3 60 30 100 50 120 S4 90 50 90 120 50 Demanded Units 100 70 90 40