QRC Company is trying to decide which one of two alternatives it will accept. The costs and revenues associated with each alternative are listed below: 21. Alternative A Alternative B Projected revenue S 62,500 S 75,000 18,000 12,000 7,500 8500 5,0006250 Unit-level costs Batch-level costs Product-level costs Facility-level costs 12,500 6,250 What is the differential revenue for this decision? A. $25,000 B. $12,500 C. $62,500 D. $75,000