What is production and operations management? What are the key functions of an operation manager?

List and elaborate the functions of production planning and control.

Claire Consultants has been entrusted with task of evaluating business plan that has been divided into four sections - marketing, finance, operations and human resources. Chris, Steve, Juana, and Rebecca form the evaluation team. Each of them has expertise in a certain field and tends to finish that section faster. The estimated times taken by each team member for each section have been outlined in the table below. Each of these individuals is paid $60/hour.
(i) Assign each member to a different section such that Claire Consultants overall cost is minimized.
(ii) What is the cost of these assignments?

The values are in minutes.