Your network contains an on-premises Active Directory domain that syncs to an Azure Active Directory (Azure AD) tenant. Users sign in to computers that run Windows 10 and are joined to the domain. You plan to implement Azure AD Seamless Single Sign-On (Azure AD Seamless SSO). You need to configure the Windows 10 computers to support Azure AD Seamless SSO. What should you do? 

Answer options:

A. Configure Sign-in options from the Settings app.
B. Enable Enterprise State Roaming.
C. Modify the Intranet Zone settings.
D. Install the Azure AD Connect Authentication Agent.

C

Reference: https://docs.microsoft.com/en-us/azure/active-directory/hybrid/how-to-connect-sso-quick-start