What must be configured to enable the firewall to download the current version of PAN-OS software?

An administrator needs to upgrade an NGFW to the most current version of PAN-OS®

software.

The following is occurring:

• Firewall has Internet connectivity through e1/1.

• Default security rules and security rules allowing all SSL and web-browsing traffic to and from any zone.

• Service route is configured, sourcing update traffic from e1/1.

• A communication error appears in the System logs when updates are performed.

• Download does not complete.

What must be configured to enable the firewall to download the current version of PAN-OS software?
A . DNS settings for the firewall to use for resolution
B . scheduler for timed downloads of PAN-OS software
C . static route pointing application PaloAlto-updates to the update servers
D . Security policy rule allowing PaloAlto-updates as the application