When migrating files from a Windows server A to a Samba server B with the command ‘net rpc share migrate files -S A -destination=B -acls -attrs -U administrator’, some files that originally belong only to a Windows group (no user) will generate errors during the migration. Which option in smb.conf will force such files to be mapped to the correct UNIX UID and GID?

A.
use acl = yes

B.
map group acls = yes

C.
force unknown acl user = yes

D.
inherit acls = no