Biometrics are for the person adjusting status, not the US citizen. The US Citizen does not even have to go to the biometrics appointment.
Please update your profile, you are not filing for N/A, and foreign country is not N/A, and local office is not N/A.

Yours
http://www.visajourney.com/timeline/profile.php?id=36966It helps everyone get your complete picture if you at least take the time to fill in the details.