Which three actions should you perform?

Your network contains an on-premises Active Directory domain named contoso.local. The domain contains five domain controllers.
Your company purchases Microsoft 365 and creates a Microsoft Azure Active Directory (Azure AD) tenant named contoso.onmicrosoft.com.
You plan to implement pass-through authentication.
You need to prepare the environment for the planned implementation of pass-through authentication.
Which three actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
A. Modify the email address attribute for each user account.
B. From the Azure portal, add a custom domain name.
C. From Active Directory Domains and Trusts, add a UPN suffix.
D. Modify the User logon name for each user account.
E. From the Azure portal, configure an authentication method.
F. From a domain controller, install an Authentication Agent.