You have a Microsoft 365 subscription. Your organization is frequently collaborating with external users from different companies. You want to automatically target all guest users, new and old, with a conditional access policy and also assign them a license. 
How should you configure this?

Answer options:

A.Create a dynamic group in Azure Active Directory
B.Create an assigned group in Azure Active Directory
C.Create a conditional access policy and assign it to all guest and external users
D.Manually add new guest users to the conditional policy and assign them a license.

Correct Answer: A 
Create a dynamic group in Azure AD with an expression in the Rule syntax box that locates all active guest users and adds them to the group. Then you scope the conditional access policy to the group containing the guest users. Then you add the license to the group, which in turn assigns the license to all its members. 

To know more about grouping guest users in dynamics groups, please refer to the link below: 

https://docs.microsoft.com/en-us/azure/active-directory/external-identities/use-dynamic-groups