A customer is creating an Event Action Plan to monitor CPU utilization on their SQL server. While creating a Simple Event Filter， the event type "Director.Director Agent.CPU Monitors" option is not available. Which of the following is the most likely source of the problem？（）

A. The appropriate Hardware Status monitors have not been set.
B. The appropriate Resource Monitor thresholds have not been set.
C. The appropriate Windows Performance monitors have not been set.
D. The appropriate Process Management thresholds have not been set.