Which of the following is a benefit offered by Azure Active Directory to application developers?

answer

By using Azure AD$,$ application developers can implement Kerberos authentication for secure sign$-$on for users.

By using Azure AD$,$ application developers can use schema extensibility to replicate changes to the user experience with each application update.

By using Azure AD$,$ application developers can create domains, trees, and forests for managing user data.

By using Azure AD$,$ application developers can integrate a user's preexisting credentials into the app for single sign$-$on authentication.