You are the IT administrator of an organization with a Microsoft 365 subscription. One of your users is reporting that she has been receiving several unknown and suspicious MFA prompts lately. You wish to educate and enable your users to temporarily block their account from their Microsoft Authenticator app when they suspect the MFA prompt not to be valid. From Azure Active Directory, what should you configure?

Answer options:

A.Named locations
B.Fraud Alerts
C.Conditional access
D.Account lockout

Correct Answer: B 
When enabled Fraud Alerts allow your users to report fraud if they receive a two-step verification request that they didn`t initiate. This can be done either by using the Microsoft Authentication App or through their phone. 
Fraud Alerts is enabled in Azure Active Directory – Security – MFA – Fraud Alerts. 

Reference: 
To know more about fraud alerts, please refer to the link below: 

https://docs.microsoft.com/en-us/azure/active-directory/authentication/howto-mfa-mfasettings#fraud-alert