What should NOT be punched on a NJ Paper Ticket?

The correct choice indicates that the QR code on a NJ Paper Ticket should not be punched. The QR code is specifically designed to be scanned for validation and ticket verification purposes. Punching the QR code would render it unreadable and ineffective for entry or verification, which could lead to complications during ticket checks. The QR code is a critical part of the ticket's function, providing essential data that facilitates the smooth operation of fare collection and verification processes.

In contrast, the other elements listed, such as the authorization code, customer ID number, and trip expiry code, are designed to be managed differently. Punching these coding elements is standard for tracking usage, verifying ticket validity, and ensuring that the ticket is being used appropriately according to the established fare policies. Each of these codes plays a different role in the ticketing process, but the QR code's unique design necessitates that it remains intact for optimal functionality.