Exam CSCP topic 1 question 394 discussion

Cost, speed, and delivery consistency the three most important factors to consider when measuring the performance of a transportation department.

Cost, speed, and delivery consistency are the factors that should be used to determine transportation department performance. Cost measures the financial efficiency of the transportation department, speed measures how quickly shipments are delivered, and delivery consistency measures the department's ability to meet delivery deadlines and requirements. These metrics are important indicators of transportation department performance, as they help to ensure that transportation costs are managed effectively, shipments are delivered on time and in good condition, and customer satisfaction is maintained

I think it's (D)

Why not D?