During the year 2021, Ms. Bowser, a foreign student from a non-treaty country, attended the University of Miami, an American university in pursuit of a degree. While in the U.S., she worked part-time at the school library and earned $3,500. During her summer vacation, Ms. Bowser returned home, where she worked for a company incorporated in her country and earned the equivalent of $4,500 (US dollars). How much of her income earned will be INCLUDED in U.S. gross income? $8,000 $4,500 $3,500 $0