问题如下：
Which of the following descriptions about full employment level of output is most appropriate?
选项：
A. It is the highest level to achieve.
B. It is an ideal level where all labor forces are employed to fit their skills.
C. The level of unemployed job seekers looking for to new job is modest and stable.
解释：
C is correct.
Full employment level of output is when the number of job seekers in the market is the same as the number of job vacancies. At this situation, the operation of economy is efficient and unconstrained.
考点：充分就业
解析：充分就业时的产量不一定是最大的，但是是可以维继的。所以A选项不正确。
充分就业时依然会存在摩擦性失业和结构性失业，所以B选项错误。
C选项是原版书表述，充分就业时参与培训和寻找新工作的人都是温和的，并且是稳定的。
这道题应该不属于总供给部分，请转告技术人员调整题库
