Which statement is true about the attack object database update process?

Which statement is true about the attack object database update process?

A.
Each sensor updates its own attack object database automatically; however they must be able to
access the Juniper site on TCP port 443.

B.
The attack object database update must be manually performed by the administrator, and the
administrator must manually install it on each sensor.

C.
The attack object database update can be initiated manually or automatically.

D.
The attack object database update can be automatically scheduled to occur using the Security
Manager GUI.