3. Explain the following manufacturing approaches and give one example for each approach.(15pts.) A. MTS (Make to stock) B. ATO (Assemble to order) C. MTO (Make to order) D. ETO (Engineer to order) 4. Explain the following process structures and give one example of each process. Then describe how each of the items in 3 matches which items in 4.(15 pts.) A. Job shop B. Line ow C. Continuous ow D. Batch operation