Which of the Following Would Not Prevent an Alien Without

Which of the following would not prevent an alien without a "green card" from being classified as a U.S.resident for income tax purposes?

A) The individual was prevented from leaving the United States due to an illness which arose while in the United States.
B) The individual commutes daily from Mexico to the United States to work.
C) The individual is a foreign consul assigned to the United States.
D) The individual was in the United States to oversee her investments.