OSB Ltd, located in Windsor, must determine from which one of six sellers the company should purchase a certain product. Note: "CAD" indicates Canadian dollars and "USD" indicates U.S. dollars. The exchange rate is $1 USD equals $1.25 CAD. . Seller A sells the product for $3350 CAD under FOB Buyer's Facility, and ships from the seller's warehouse in Toronto . Seller B sells the product for $3110 CAD under FOB Seller's Warehouse, and ships from the seller's warehouse in Hamilton (Ontario) . Seller C sells the product for $3120 CAD under FOB Toronto, and ships from the seller's warehouse in Montreal . Seller D sells the product for $2400 USD under FOB Toledo Warehouse terms, and ships from the seller's warehouse in Toledo (Ohio, U.S.A.) . Seller E sells the product for $3390 CAD under Delivered terms, and ships from the seller's warehouse in Toronto . Seller F sells the product for $3150 CAD under FOB Delivered Basing Point Toronto, and ships from the seller's warehouse in Hamilton Delivery costs for this product are: . from Hamilton to Windsor: $275 CAD from Montreal to Toronto: $400 CAD from Montreal to Windsor: $500 CAD from Toledo (in USA) to Windsor: $200 USD . from Toronto to Hamilton: $100 CAD . from Toronto to Windsor: $250 CAD As well, there is a 5% Customs duty on this product when it enters Canada from U.S.A. Required: a. Calculate OSB Ltd's landed cost (landed price) for each of the four sellers. (1 mark each = 6 marks) b. From which one seller should OSB Ltd in Windsor purchase the product if OSB Ltd wants to minimize landed cost? (1 mark)