问题详情

The phrase "students on the margins" in Paragraph 2 most probably refers to ______.
A．students who actually regard higher education as an investment
B．students who can"t afford the money to go to college or university
C．students who can"t go to college because they have failed in the college entrance examination
D．students who don"t know whether higher education can have great influence on their earnings请帮忙给出正确答案和分析，谢谢！