In the SCOR model there are five major categories of metrics that need to be used to measure the performance of Process D1: reliability, _____, agility, costs, and asset management.

A) ROA
B) responsiveness
C) supply chains
D) cash-to-cash cycle

The five major categories of metrics in the SCOR model for measuring the performance of process D1 are reliability, responsiveness, agility, costs, and asset management. The missing category in the options provided is responsiveness, which refers to the speed and flexibility in responding to customer demands and market changes. ROA (Return on Assets) and cash-to-cash cycle are financial metrics related to asset management and cash flow, respectively, while supply chains is a broader concept that encompasses the entire network of activities involved in delivering goods and services to customers. Therefore, option B, responsiveness, is the best choice for completing the statement.