The supermarket is evaluating the option of sourcing the 64 oz. cartons from an alternate supplier, supplier B. The holding cost for the 64 oz. carton purchased from supplier B is also $1.50 per carton per year. The supermarket can purchase the 64 oz. cartons from supplier B at a price of $1.8/carton and supplier B charges a fixed delivery fee of $50 for every order. However, supplier B imposes the restriction that the supermarket can purchase the 64 oz. orange juice cartons only in multiples of 300. Given this restriction, should the supermarket source from supplier A or supplier B?