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Consider the following network diagram showing Company RML's distribution network along with capacity at each point: 180 Ri Wi R2 120 200 P1 R3 140 W2 1200 350 P2 R4 100 900 W3 250 RS 160 Plants Warehouses Retailers The transportation costs and maximum weekly amount of shipment are given below: Maximum amount sent from each plant to warehouse Warehouse 1 Warehouse 2 Warehouse 3 Plant 1 130 150 140 Plant 2 160 170 180 Maximum amount sent from each warehouse to retailer Retailer 1 Retailer 2 Retailer 3 Retailer 4 Retailer 5 Warehouse 1 120 90 110 80 150 Warehouse 2 70 190 50 140 120 Warehouse 140 160 180 20 100 Transporation cost from plants to warehouse Warehouse 1 Warehouse 2] Warehouse 3 Plant 1 520 $80 $ 25 Plant 2 550 530 595 Transporation cost from warehouse to retailers Retailer 1 Retailer 2 Retailer 3 Retailer 4 Retailer 5 Warehouse 1 565 $50 $60 $75 $25 Warehouse 2 585 510 585 575 590 Warehouse 3 590 585 $25 $35 $95 Due to contract regulations, the company needs to send at least 10 units from each warehouse to each of the retailer. What would be the optimal cost of shipment for the company? (A) $63,250 (B) $64,580 (C) $65,350 (D)None of the above