Service firms that might use job-order costing

Each week, you will be asked to respond to the prompt or prompts in the discussion forum. Your initial post should be a minimum of 300 words in length, and is due on Sunday. By Tuesday, you should respond to two additional posts from your peers. Question A Give some examples of service firms that might use job-order costing, and explain why it is used in those firms. Question B What is activity-based product costing and when is it beneficial?