Final answer:
Azure Service Health is the service that helps diagnose and obtain support when your resources are affected by an Azure service issue. It provides personalized alerts and detailed incident information.
Step-by-step explanation:
The service that helps you diagnose and obtain support when an Azure service issue affects your resources is D) Azure Service Health. Azure Service Health provides personalized alerts and guidance when Azure service issues affect you.
It enables you to customize alerts to get them in your preferred communication channels and provides a dashboard with detailed information on the timeline and impact of the incident. It's different from Azure Status, which offers a global view of the health of Azure services, and Azure Monitor, which primarily focuses on the performance monitoring of your applications and services. Resource Health is another service that gives you insight into the health of your individual resources, rather than service-wide issues.