Which of these repository types CANNOT be an extent of a scale-out backup respository? Choose two options.

Which of these repository types CANNOT be an extent of a scale-out backup respository? Choose two options.
A . A deduplicating storage appliance
B . A Windows server
C . A Cloud Connect cloud repository
D . A shared folder (CIFS/SMB share)
E . Another scale out repository
F . A Linux Server

Answer: C,E