What differentiates the property of objects in IFS directories from objects in the /QSYS.LIB file
system?

A.
QSYS.LIB object names are case sensitive.
B.
IFS objects can be excluded from all types of backups.
C.
IFS objects cannot specify the character set used to store data.
D.
QSYS.LIB objects *PUBLIC authority cannot be influenced by the containing object.