Which two add-on licenses should you assign to the users?

You have a Microsoft 365 subscription that uses Microsoft Teams. All users are assigned a Microsoft Office 365 Enterprise E3 license.

You need to ensure that the users can join scheduled meetings by dialing a toll-free phone number.

Which two add-on licenses should you assign to the users? Each correct answer presents part of the solution. Each correct selection is worth one point.
A . Communication Credits
B. Microsoft 365 Audio Conferencing
C. Microsoft 365 Domestic Calling Plan
D. Microsoft Teams Phone Standard ― Virtual User
E. Common Area Phone

Answer: A,B

Explanation:

https://docs.microsoft.com/en-us/microsoftteams/teams-add-on-licensing/microsoft-teams-add-on-licensing