Ch 6. Relevant Information for decision making with a focus on Operational Decision Answer to the following questions for the upcoming chapter. (you can find the answers from the textbook and slides or any other resources)1. Compare Differential Analysis and Incremental Analysis in Operational Decision.2. Explain decision process of Make-or-Buy products, using the concepts of avoidable, unavoidable costs.3. Explain decision process of Deletion-or-Addition of products, services, or departments. What costs are relevant and irrelevant in this decision.4. Explain decision process of Keep-or-relace equipment. What costs are relevant and irrelevant in this decision?5. What is a join product? Explain the split off point, joint cost, and separable cost.