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For the economic analysis where the benefits are the same for the 2 alternatives but the costs are not, if the results are present value of A equal to -$438 and present value of B equal to -$250. Which alternative will be preferred and why? Select one: Alternative B because it minimizes the present value of costs Alternative B because it maximizes the difference of the present value of the benefits minus the present value of the costs Alternative A because it maximizes the difference of the present value of the benefits minus the present value of the costs Alternative A because it minimizes the present value of costs