Which description you can recognize as a feature of the Cisco Catalyst 6500 Series FWSM?

You are the new RourDomain Trainee. Which description you can recognize as a feature of the Cisco Catalyst 6500 Series FWSM?

A.
It can carry out multiple virtual firewalls across the data center but only within its own tier, not across tiers.

B.
It is a standalone appliance and cannot be fitted into the Catalyst 6500 Series Switches.

C.
It fits into the Catalyst 6500 Series Switches and allows logical firewalls to be deployed across the whole data center.

D.
It is an embedded function of the Cisco Application Control Engine Module, which can be fitted into the Catalyst 6500 Series Switches.