Supply chain management involves the functions of plan - buy - make - deliver. select the best way to describe the decisions made within these four functions.

A. The decisions made in these functions happen sequentially: First the Plan Department makes planning decisions. Then the Buy Department makes purchasing decisions. Then the Make Department makes production decisions. And finally, the Deliver Department makes transportation decisions.

B. The decisions made in these functions are fragmented and separate from one another. Similar to the way concepts were presented in this course, Supply Chain Management is just a bunch of very small decisions that utilize a variety of tools, techniques, and calculations. Independent managers can use any of these tools, techniques, or calculations to make the optimal decision for the business.

C. The decisions made in these functions must be made collaboratively and concurrently (at the same time). Any decision in one area will influence the optimal decision for the other areas. Furthermore, the decisions made in Supply Chain Management must be made with the other functions of the business in mind: Sales, Marketing, Finance and Accounting decisions are also interdependent on the decisions made in Supply Chain Management. When one functional manager would like to change a way that part of the Supply Chain operates, the other functions of Supply Chain will need to coordinate their efforts to support these decisions. The interconnected nature of Supply Chain is one of the features that makes SCM complex - but, for our SCM majors, this is also the feature that makes Supply Chain the most fun. We get to use our creativity to improve the business performance!

D. The decisions made in these functions happen independently. Each of the four functions of Supply Chain makes the best decision for their own part of the Supply Chain and when all the pieces come together, everything works out perfectly.