The correct option is Automatic scheduled backups of Azure Active Directory data.

Azure AD Connect Health for Sync is a monitoring and diagnostics service that focuses on collecting sync performance metrics and surfacing alerts and health information for the on premises sync infrastructure. It helps teams detect and investigate synchronization problems but it does not perform data protection tasks or create scheduled backups of Azure AD data.

Monitor synchronization performance metrics is incorrect because AD Connect Health for Sync explicitly gathers performance telemetry and sync metrics to show latency trends and error rates. The service is designed to monitor how synchronization is behaving and where bottlenecks occur.

Receive and respond to synchronization alerts is incorrect because the product raises alerts for sync failures and critical conditions and it provides the diagnostics needed to respond to those alerts. Administrators can use the alerts to investigate and remediate issues.

Configure email notifications for critical alerts is incorrect because AD Connect Health integrates with Azure alerting and notification mechanisms so you can configure notifications for critical alerts through Azure Monitor and action groups. The capability to notify administrators by email is therefore supported but it is part of the alerting integration rather than a backup feature.

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