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.