Sarina Harper, a 19-year-old student at Virginia Tech, was faced with a tough dilemma when she first started college in 2015 — pay rent or pay to turn in her chemistry homework.

19岁的萨琳娜·哈珀是弗吉尼亚理工大学的一名学生。2015年，她刚开始上大学的时候，面临着一个两难的选择：要么交房租，要么花钱交化学作业。