You are the administrator for an organization.
A user named User1 can communicate with User2 from an external domain by using chat.
User1 is not able to add User2 to a team.
You need to ensure that User1 can add User2 to a team.
What should you do?
A . Enable external access.
B . Confirm whether the domain is in the external access allowed list.
C . Ask the administrator of the external domain to add your domain to their Allowed Domain list.
D . Use the Microsoft Teams web app.
E . Enable guest access.