又遇见了一道5个选项都让人莫名其妙的题??求解

九段泡面高手

GWD第9套，11题
GWD-12-Q11:
In general, jobs are harder to get in times of economic recession because many businesses cut back operations.  However, any future recessions in Vargonia will probably not reduce the availability of teaching jobs at government-funded schools.  This is because Vargonia has just introduced a legal requirement that education in government-funded schools be available, free of charge, to all Vargonian children regardless of the state of the economy, and that current student-teacher ratios not be exceeded.

Which of the following, if true, most strengthens the argument?

A.    The current student-teacher ratio at Vargonia’s government-funded schools is higher than it was during the most recent period of economic recession.
B.    During recent periods when the Vargonian economy has been strong, almost 25 percent of Vargonian children have attended privately funded schools, many of which charge substantial fees.
C.    Nearly 20 percent more teachers are currently employed in Vargonia’s government-funded schools than had been employed in those schools in the period before the last economic recession.
D.    Teachers in Vargonia’s government-funded schools are well paid relative to teachers in most privately funded schools in Vargonia, many of which rely heavily on part-time teachers.
E.    During the last economic recession in Vargonia, the government permanently closed a number of the schools that it had funded.
答案选B。私利学校的人数和公立学校老师不丢工作有什么关系阿？

squall2284

我觉得是在经济情况良好的情况下，有那些比例的学生是在私立学校的，也就是说，当经济萧条，衰退的时候，那些私立学校的学生会转到公立学校去，那样的话学生增加了，自然老师的需求也就增加了……
其实我要是不知道答案我也不知道怎么回事……

九段泡面高手

THX a lot ^0^, 原来如此，这么复杂，条件这么少的推理还真是少见，我需要多看一点柯南了。