Which account will be used for the Synchronizing Windows setting?

You have computers that run Windows 10 and are joined to Azure Active Directory (Azure AD).

All users sign in to the computers by using their Azure AD account.

Enterprise State Roaming is enabled.

From the Settings app, a user named User1 adds a Microsoft account.

Which account will be used for the Synchronizing Windows setting?
A . the work account only
B. the Microsoft account only
C. both the Microsoft account and the work account

Answer: A

Explanation:

Reference: https://docs.microsoft.com/en-us/azure/active-directory/devices/enterprise-state-roaming-enable