A、8,500. B、160. C、1,000. D、500. B题目问有多少学校的行政办公室被学生关闭。新闻中提到，自周三以来，学生关闭了月收费超过1000卢比的160所学校的行政办公室。故B项正确。

In Nepal, a row over tuition fees has closed down around 8,500 of the country’s public schools, affecting some one and a half million students. Schools were shut down on Sunday to prevent protests by left-wing students against schools charging tuition of more than 500 rupees, $6 a month. [3]Since Wednesday, students have locked the offices of officials at 160 schools that charge monthly fees in excess of 1,000 rupees. Students want an end to all but necessary fees and [4]a more standardized curriculum around the Kingdom. They also want boarding schools to set aside 25% of their places to students from remote areas or underprivileged backgrounds. The protestors argue that tuition fees rarely helped students’ welfare or improved the quality of education.
3. How many schools’ offices of officials have been locked by the students?
4. What is the students’ request according to the news?