A business-critical application will be installed on an Internet facing server. Which of the following is the BEST security control that should be performed in conjunction with updating the application to the MOST current version?

A.
The firewall should be configured to allow the application to auto-update.

B.
The firewall should be configured to prevent the application from auto-updating.

C.
A port scan should be run against the application’s server.

D.
Vendor-provided hardening documentation should be reviewed and applied.