Directory services store information in a heirarchical structure. Which statements about Organizational Units (OUs) of a directory service hierarchy are true? Check all that apply.

a.Sub-member OUs inherit the characteristics of their parent OU.

b.Specific files within an OU, or container, are called "objects."

c.Parent OUs inherit characteristics of their sub-members.

d.Changes can be made to one sub-OU without affecting other sub-OUs within the same parent.