A System Manager needs to import custodians from the Employee List area using the Import All from Active Directory menu option. The System Manager receives
the message “No Active Directory users to import.” Which task needs to be performed for the import to work successfully?

A.
run Active Directory discovery from All Collections Sources area

B.
run Active Directory discovery from Email Servers page in System area

C.
add Active Directory Domain to crawl as source on the Settings page

D.
add Active Directory global catalog server as source first on the Settings page