What does the error message "response_type 'id_token' is not enabled for the application" typically indicate in an authentication or authorization context?
a) The application is not registered with the correct OAuth provider.
b) The application is missing required permissions for the 'id_token' response type.
c) The 'id_token' response type is not configured or allowed in the application’s OAuth settings.
d) The application has an invalid client secret for the OAuth provider.