for the right to use her code in up to 9,000 packages. If eprocurement sells more than 9,000 packages, Heninger receives $7.70 for each package sold beyond the 9,000 level. Click the icon to see the Worked Solution. Find the unit cost for each number of packages sold. (Round your answers to the nearest cent as needed.) Comment on the results from the previous step. Choose the correct answer below. A. The unit cost decreases as the number of packages sold increases. The total cost is a fixed cost up to 9,000 units and then is a variable cost beyond 9,000 units. C. The unit cost increases as the number of packages sold increases. The total cost is a variable cost based on the number of packages sold. A. ECG should use the unit cost from situation (b) because it has the lowest unit cost. B. ECG should use the unit cost from situation (c) because it has the lowest unit cost. C. ECG should use the unit cost from situation (a) because it has the lowest unit cost. D. ECG should use the unit cost from situation (d) because it has the lowest unit cost. E. ECG should not use any of the unit costs because the total cost is a fixed amount up to 9,000 units and then is a mixed cost beyond 9,000 units. Review Worked Solution Requirement 1 Unit cost (a): $99,0001,800=$55.00 Unit cost (b): $99,0006,400=$15.47 Unit cost (c): $99,0009,000=$11.00 Total cost (d):$99,000+($7.70(18,0009,000))=$168,300 Unit cost (d): $168,30018,000=$9.35 Required 1. What is the unit cost of ECG for Heninger's software code included in its eprocurement package if it sells (a) 1,800 , (b) 6,400 , (c) 9,000 , and (d) 18,000 packages? Comment on the results. 2. For prediction of ECG's total cost of using Heninger's software code in eprocurement, which unit cost (if any) of (a) to (d) in requirement 1 would you recommend ECG use? Explain