You need to configure the user accounts of the sales department users to meet the security requirements.
What should you do for each user?
A . From PowerShell, run the Grant-CsTeamsUpgradePolicy -PolicyName SfBWithTeamsCollabAndMeetings cmdlet.
B . From the Microsoft Teams admin center, set the Microsoft Teams upgrade policy to Islands coexistence mode.
C . From PowerShell, run the Grant-CsTeamsUpgradePolicy -PolicyName Islands cmdlet.
D . From PowerShell, run the Grant-CsTeamsUpgradePolicy -PolicyName SfBOnly cmdlet.
Answer: A