A security administrator must implement a system that will support and enforce the following file
system access control model:
FILE NAME SECURITY LABEL
Employees.doc Confidential

Salary.xls Confidential
OfficePhones.xls Unclassified
PersonalPhones.xls Restricted
Which of the following should the security administrator implement?

A.
White and black listing

B.
SCADA system

C.
Trusted OS

D.
Version control