A company has just deployed a set of Azure virtual machines. They want their IT administrative team to get alerts whenever the CPU of the virtual machines goes beyond a certain threshold. Which of the following service could be used for this requirement?

Answer options:

A.Azure Advisor
B.Azure Security Center
C.Azure Monitor
D.Azure Active Directory

Answer – C 
You can create alerts in Azure Monitor based on the virtual machine metrics. 
The Microsoft documentation mentions the following. 

For more information on alerts in Azure Monitor, please visit the below URL- 

https://docs.microsoft.com/en-us/azure/azure-monitor/platform/alerts-overview