East West Distributing is in the process of trying to determine where they should schedule next year's production of a popular line of kitchen utensils that they distribute. Manufacturers form in four different countries have submitted bids to East West. However, a pending trade in bill in Congress will greatly affect the cost to East West due to proposed tariffs, favorable trading status, etc. After a careful analysis, East West has determined the following cost breakdown for the four manufacturers (in $1,000's) on whether or not the trade bill passes: Bill Passes country A 260, country B 320, country C 240, country D 275 Bill Fails country A 210, country B 160, country C 240, country D 210 a. If East West estimates that there is a 40% chance of the bill passing, which country should they choose for manufacturing? b. over what range of values for the "bill passing" will the solution in part (a) remain optimal?