answer please

9. By which distribution system is 90 percent of the nation's coal shipped? Select one: O a pipelines O b. none of the above O c. waterways Od trucks O e. railroads 8. Increase capacity Select one: O a. I case favor responsiveness over cost for short-life cycle products. O b. To centralize redundancy for low-volume products in a few flexible suppliers. O c. For unpredictable demand. O d. To focus on low-cost, predictable demand. 14. Stages of the supply chain may not include Select one a. Manufacturers O b. Suppliers O c. Regulators O d. Distributors 18 The supply chain planning stage is concerned with Select one O a How to structure the supply chain over the next several years b. Daily or weekly operational decisions O c Information systems and technologies Od Decisions over the next quarter or year