Azure Service Health is specifically designed to provide notifications about planned maintenance events that may affect Azure resources. It offers personalized guidance and alerts for service issues, planned maintenance, and health advisories relevant to your subscription. The community discussion strongly supports this with 86% selecting option B, and multiple comments emphasize that Azure Service Health is the correct tool for planned maintenance notifications. Azure Monitor (A) focuses on performance monitoring and diagnostics, not maintenance notifications. Azure Advisor (C) provides optimization recommendations for cost, security, and performance. Microsoft Trust Center (D) offers information about Microsoft's security and compliance policies but doesn't provide subscription-specific maintenance alerts.