ABC Corp. is implementing 11i Oracle Applications. The company has two local administrators in separate locations. They need to ensure that only a relevant set of users is visible to each of these local administrators. Which action will meet the requirement?（）

A. create a separate role for each local administrator
B. specify user administration privileges in Oracle User Management
C. use Data Security to provide relevant access to each local administrator
D. use Function Security to provide relevant access to each local administrator