B

[解析]本题是细节考查题。题目是：因为高等教育产业已经成为卖方市场，国家提高入学率的目标会怎样?选B的依据是第三段第一句： “As higher education has become a seller’S market，the institutions in a position to do SO are doing what comes naturally：raising their tuitions their admissions requirements，but at the expense of contributing to the national goal to increase college attainment．”当高等教育成为卖方市场的时候，各所大学自然而然就会提高学费，提高入学门槛，其代价就是国家提出的提高大学入学率的目标很难实现。选项B的意思是很难达到，与原文意思相符。答案为B。