You have a Microsoft 365 subscription with 30 E5 and 30 E3 available licenses. Your company has 3 departments: IT, Sales and Management. You need to make sure all users in the Management department will be assigned the E5 license automatically with the least amount of management on your end. What should you do?

Answer options:

A.In Azure Active Directory, create a security group with dynamic membership rules. Set the rule property to department and value to “Management”, and then assign the E5 license to the security group.
B.Assign the license manually when creating the new users.
C.Create an access review.
D.Create a powershell script that assigns E5 license to Management-users and run it weekly.

Correct Answer: A 
Best approach here is to create a dynamic membership security rule that will automatically include all users in the Management-department. 
By assigning the license to the security group, all users within the group will be licensed. 

Option B is incorrect. This will not assign the licenses automatically and would be time-consuming.
Option C is incorrect. Access reviews are typically used to scope out user access and assignments.Not the way to go here.
Option D is incorrect. This will not assign the licenses automatically and is time-consuming.
Reference: 
To know more about azure AD dynamics groups, please refer to the link below: 

https://docs.microsoft.com/en-us/azure/active-directory/enterprise-users/groups-create-rule