C的现象是什么知识点？
问题如下图：
选项：
A. 
B. 
C. 
解释：
NO.PZ2017100901000020 问题如下 ring economic recovery, a lagging unemployment rate is most likely attributable to: A.businesses quickly rehiring workers. B.new job seekers entering the labor force. C.unremployeworkers transitioning to higher-paying jobs. B is correct.In economic recovery, new job seekers return to the labor force, anbecause they selm finwork immeately, their return minitially raise the unemployment rate.考点Unemployment解析因为在经济刚开始不景气的时候，企业主会通过减少工人工作小时数的方法调节生产，只有当经济进一步衰退时才会考虑裁员，所以B说法正确。经济不景气的时候企业主无意培训新员工，工人也很难找到培训再就业的机会，所以A,C都错误。 RT
NO.PZ2017100901000020 问题如下 ring economic recovery, a lagging unemployment rate is most likely attributable to: A.businesses quickly rehiring workers. B.new job seekers entering the labor force. C.unremployeworkers transitioning to higher-paying jobs. B is correct.In economic recovery, new job seekers return to the labor force, anbecause they selm finwork immeately, their return minitially raise the unemployment rate.考点Unemployment解析因为在经济刚开始不景气的时候，企业主会通过减少工人工作小时数的方法调节生产，只有当经济进一步衰退时才会考虑裁员，所以B说法正确。经济不景气的时候企业主无意培训新员工，工人也很难找到培训再就业的机会，所以A,C都错误。 新工作的求职者参与到劳动力市场，但是因为企业家一开始不愿意雇人而是加班，所以才导致失业率增加。B仅仅强调了前半句，后面真正会导致lag的原因根本没有呀
NO.PZ2017100901000020 问题如下 ring economic recovery, a lagging unemployment rate is most likely attributable to: A.businesses quickly rehiring workers. B.new job seekers entering the labor force. C.unremployeworkers transitioning to higher-paying jobs. B is correct.In economic recovery, new job seekers return to the labor force, anbecause they selm finwork immeately, their return minitially raise the unemployment rate.考点Unemployment解析因为在经济刚开始不景气的时候，企业主会通过减少工人工作小时数的方法调节生产，只有当经济进一步衰退时才会考虑裁员，所以B说法正确。经济不景气的时候企业主无意培训新员工，工人也很难找到培训再就业的机会，所以A,C都错误。 不觉得这道题目的和的意思不符合吗？
NO.PZ2017100901000020 ac不选明白，B的意思是招新工作的人加入到labor force里 我的问题是为什么会有new job seeker entering，recovery的时候经济变好，但老板还在裁员是吗？所以才有new job seeker entering labor force？是因为unemployment 是lag指标，所以实际recovery时候，老板还在裁员？所以更多的没工作的人进入labor？不太理解这块
NO.PZ2017100901000020 new job seeker的进入会使得unemployment rate 的分母增加，但为啥会导致滞后指标呢？不是很理解，希望能一下，谢谢
