Two companies came to you for an advice regarding the costing system to be used in their company. The details are as follows a. Company A manufacture products based on customer order. Each customer specify their requirements while submitting their requests. b. Company B manufacture different products, however, all the products go through different stages until the final product is completed. Advice the companies regarding which method of costing is suitable for them. Your answer should include the reason for considering a particular costing technique.