Site: alllaw.com
... three years based on marriage to and residence with a U.S. citizen during that time period, check box 1.B. ... being asked about whether your parents are U.S. citizens is that it’s possible, depending on the law ... Citizen: A Guide to the Law, Exam & Interview, by Ilona Bray, J.D. (Nolo).
6. ... who got their green cards based on marriage to a U.S. citizen, but who filed independently based on a law ...