For an incremental order of 5000 units at $70 each the following costs have been compiled, incremental variable costs $50 per unit, incremental fixed costs $40,000, lost sales of 1000 units with the same variable costs to make but a revenue per unit of $90 per unit. The change in company profits to accept this special order is: a. $0 b. $20000 c. $30000 d. $70000 e. None of the above are correct.