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

Select one:

a$.$

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

b$.$

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

c$.$

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

d$.$

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