In which of the following situations would a company most likely manufacture parts rather than buy those parts? When the manufacturing costs of direct material, plus direct labor, plus variable overhead: A. is less than the cost to buy the parts. B. is greater than the cost to buy the parts. C. plus fixed overhead is less than the cost to buy the parts. D. plus avoidable fixed overhead is greater than the cost to buy the parts. E. None of these. In evaluating special orders, a producer should consider: A. all factory overhead. B. no factory overhead. C. variable factory overhead. D. fixed factory overhead. E. None of these.