Is Adjustment of Status the Only Way by Which Aliens

Multiple Choice

Is adjustment of status the only way by which aliens may gain LPR status?

A) Yes.
B) No, they may gain LPR status by doing nothing for a period of five years, at which point LPRstatus will be granted to them automatically.
C) No, they may obtain an immigrant visa from the United Nations building in New York City.
D) No, they may leave the United States and obtain an immigrant visa from a U.S.Consulate in aforeign country.