When configuring Anti-Bot & Anti-Virus, you notice the following error in the Update Status of the Gateways
page:

What is the most likely cause of this error?

A.
The Security Gateway is not licensed for Anti-Bot & Anti-Virus inspection.

B.
There are no updates available for the participating gateway.

C.
The Anti-Bot & Anti-Virus policy is not installed on the gateway.

D.
You do not have DNS or proxy settings configured for the gateway.