CPU Utilization Climbs Above 90% on Several VMs

CPU utilization climbs above 90% on several VMs. This causes performance degradation for a business-critical application. How can alerts be configured to notify the administrator before VM CPU utilization hits 90%?

A) On the Health dashboard, locate the VM CPU Check and lower the alert threshold below 90%. On the Health dashboard, locate the VM CPU Check and lower the alert threshold below 90%.
B) On a CVM, use ncli to set the VM CPU Check threshold for the critical VMs to a value below 90%. On a CVM, use ncli to set the threshold for the critical VMs to a value below 90%.
C) On the Alerts dashboard, ensure that the VM CPU usage alert is not set to auto-resolve . On the Alerts dashboard, ensure that the VM CPU usage alert is not set to auto-resolve .
D) On a CVM, configure a cron job to run the VM CPU Check more frequently and email the result. On a CVM, configure a cron job to run the more frequently and email the result.