You have an Office 365 tenant that has an Enterprise E3 subscription. You configure multi-factor authentication for all users in the tenant. Remote users configure Outlook 2016 to use their Office 365 credentials
You need to ensure that users only authenticate with Office 365 by using two-step verification.
What should you do?
A. Disable app passwords for the user accounts.
B. Remove the rights management license from the user accounts.
C. Modify the license type of the user accounts to an Enterprise El subscription.
D. Add the user accounts to a new security group.
