You have a Microsoft 365 tenant. All users have mobile phones and laptops. The users frequently work from remote locations that do not have Wi-Fi access or mobile phone connectivity. While working from the remote locations, the users connect their laptop to a wired network that has internet access. You plan to implement multi-factor authentication (MFA). Which MFA authentication method can the users use from the remote location? 

Answer options:

A. a verification code from the Microsoft Authenticator app
B. security questions
C. voice
D. SMS

C

An automated voice call is made to the phone number registered by the user. To complete the sign-in process, the user is prompted to press # on their keypad. Incorrect Answers: A: The Microsoft Authenticator app requires a mobile phone that runs Android or iOS B: Security questions are not used as an authentication method but can be used during the self-service password reset (SSPR) process. D: SMS requires a mobile phone - Reference: https://docs.microsoft.com/en-us/azure/active-directory/authentication/concept-authentication-methods