XYZ Company sells products X and Y to business customers. After implementing activity-based costing to estmate customer-level technical support costs, the company found that customer A is profitable and customer B is unprofitable. What are reasonable ways to deal with customer B? (select ALL correct answers) if nothing else works, "fire" customer B charge a fee per technical-support call charge customer B a higher price per unit (assume that you can charge different customers different prices for the same product or service) trick question -- it is impossible to estimate customer-level profitability limit the number of free technical-support calls per customer