Which statement regarding OracleAS Web Cache users and passwords is true?

Which statement regarding OracleAS Web Cache users and passwords is true?

A.
The administrator user cannot send invalidation requests withOracleAS Web Cache Manager.

B.
The invalidator user can start, stop, or restartOracleAS Web Cache.

C.
The invalidator user has the same password as that of theias_admin user.

D.
The passwords are stored in the webcache.xml file in an encrypted form.