Answer – B
The Azure Service Health service is used to monitor the health of the underlying infrastructure that is used to host Azure-based services. You cannot use this service to prevent the service failure of an Azure virtual machine.
If you want to increase the availability of your virtual machines, consider deploying the virtual machines across an availability set or an availability zone.
For more information on the Azure Service Health, please visit the following URL-
https://azure.microsoft.com/en-us/features/service-health/