You want to use the MTA adapter feature on FortiSandbox in an HA-Cluster. Which statement about this solution is true?

You want to use the MTA adapter feature on FortiSandbox in an HA-Cluster.
Which statement about this solution is true?

A. The configuration of the MTA Adapter Local Interface is different than on port1 B. The MTA adapter is only available in the primary node C. The MTA adapter mode is only detection mode D. The configuration is different than on a standalone device