Explanation:

Explanation:

Box 1: Yes
Azure Security Center is a unified infrastructure security management system that strengthens the security posture of your data centers, and provides advanced threat protection across your hybrid workloads in the cloud - whether they're in Azure or not - as well as on premises.
Box 2: No
Only two features: Continuous assessment and security recommendations, and Azure secure score, are free.
Box 3: Yes
The advanced monitoring capabilities in Security Center also let you track and manage compliance and governance over time. The overall compliance provides you with a measure of how much your subscriptions are compliant with policies associated with your workload.
References:
https://docs.microsoft.com/en-us/azure/security-center/security-center-intro

Reference:
https://support.microsoft.com/en-us/help/30881

References:
https://www.neowin.net/news/several-more-azure-services-now-available-in-private-public-preview/ Public Preview means that the service is in public beta and can be tried out by anyone with an Azure subscription. Services in public preview are often offered at a discount price.
Public previews are excluded from SLAs and in some cases, no support is offered.

Section: Understand Core Azure Services