Need help filling I-821d travel information

I have not travel outside the U.S but I have my Mexican passport on question number 9 do is asking what country issued your passport should I put Mexico or the US since it was issued in the US but is a Mexican passport ?

Mexico.

Thanks

I'm from New York do you know where do I need to send the application to ?

No problem. Yeah.

http://www.uscis.gov/i-821d-addresses

USCIS Chicago Lockbox Facility
USCIS
P.O. Box 5757
Chicago, IL 60680-5757