德铁买火车票遇到问题

今天在德铁上买火车票，到“Register for Online-Ticketing (for print-out from your own computer) ”时


Your identification for the Online-Ticket

1. I would like to register for the Online Ticket and accept the AGBs. The software Adobe Reader required to print online tickets is installed on my computer.

2. I am myself the holder of the below ID (valid BahnCard or credit card) and understand that I must present this document together with the Online-Ticket print-out during my journey.


这两个我应该选哪一个啊，还是两个都选呢


BahnCard Online-Ticket ID number:* Expiry date:*

Credit card Online-Ticket ID number:* Expiry date:*

ec-Karte (Maestro) Account number:*Sort code:* Expiry date:*


这三个选哪个填啊，Online-Ticket ID number 怎么填啊


万分感谢