Explanation:
Box 1: Yes
Microsoft Purview Compliance Manager is a feature in the Microsoft Purview compliance portal that helps you manage your organization's compliance requirements with greater ease and convenience. Compliance Manager can help you throughout your compliance journey, from taking inventory of your data protection risks to managing the complexities of implementing controls, staying current with regulations and certifications, and reporting to auditors.
Box 2: Yes
Also for multi-tenant organizations in single or multiple regions.
Box 3: Yes
Microsoft 365 Groups are used for collaboration between users, both inside and outside your company. With each Microsoft 365 Group, members get a group email and shared workspace for conversations, files, and calendar events, Stream, and a Planner.
Note: A mail-enabled security group can be used to distribute messages and to grant access permissions to resources in Active Directory.
A mail-enabled security group has a group email address.
Reference:
https://docs.microsoft.com/en-us/microsoft-365/compliance/compliance-manager?view=o365- worldwide
https://docs.microsoft.com/en-us/power-platform/admin/multiple-online-environments-tenants
https://docs.microsoft.com/en-us/microsoft-365/admin/create-groups/compare- groups?view=o365-worldwide#mail-enabled-security-groups