陈圣元 section8 第3题

Namelessone~UID：3111489

论坛中下载的pdf解析此处出现横线，模糊了答案。请教这题正确答案是？
另，这道填空的难度与新G填空相比，难度是如何啊，相似，差很多，还是只差一点啊？
谢谢！

3.  Laws do not ensure social order since laws can always be----, which makes them----unless the authorities have the will and the power to detect and punish wrongdoing.
(A)        contested.. provisional
(B)        circumvented.. antiquated
(C)        repealed.. vulnerable
(D)        violated.. ineffective
(E)        modified.. unstable