Your organization has recently gone Google, but you are not syncing Groups yet. You plan to sync all of your Active Directory group objects to Google Groups with a single GCDS configuration. Which scenario could require an alternative deployment strategy?
Correct Answer: D
https://support.google.com/a/answer/7177266?hl=en "All groups in a Google domain are referenced by an email address. You must ensure that all the security groups you want to synchronize have a valid mail attribute defined."