You are a global admin in a company with a Microsoft 365 E5 subscription. You are using eDiscovery, and need to add a group as a member of the eDiscovery Manager role group. 
Where should you do this? 

Answer options:

A.Security & Compliance Center PowerShell - Add-RoleGroupMember
B.Azure Cloud Shell - az ad group member add
C.Security & Compliance Center PowerShell – Get-ComplianceCaseMember
D.Security & Compliance Center PowerShell – ShowCaseAdmin

Correct Answer: A 
You can add mail-enabled security group as a member of eDiscovery Manager group by connecting to Security & Compliance Center PowerShell and running the following cmdlet: 
Add-RoleGroupMember "eDiscovery Manager" -Member <name of security group> Option B is incorrect. This will add a member to an Azure AD group. 
Option C is incorrect. This will let you view the members of eDiscovery cases in the Microsoft 365 compliance center.
Option D is incorrect. The ShowCaseAdmin switch specifies whether to return the eDiscovery case admin in the results.
Reference: 
To know more about eDiscovery permission, please refer to the link below: 

https://docs.microsoft.com/en-us/microsoft-365/compliance/assign-ediscovery-permissions?view=o365-worldwide