求助一道逻辑题！Citizens of Parktown are worried by the increased frequency of serious

kykykykyno

Citizens of Parktown are worried by the increased frequency of serious crimes committed by local teenagers.  In response, the city government has instituted a series of measures designed to keep teenagers at home in the late evening.  Even if the measures succeed in keeping teenagers at home, however, they are unlikely to affect the problem that concerns citizens, since most crimes committed by local teenagers take place between 3 p.m. and 6 p.m.

Which of the following, if true, most substantially weakens the argument?
A. Similar measures adopted in other places have failed to reduce the number of teenagers on the streets in the late evening.
B. The crimes committed by teenagers in the afternoon are mostly small thefts and inconsequential vandalism.
C. Teenagers are much less likely to commit serious crimes when they are at home than when they are not at home.
D. Any decrease in the need for police patrols in the late evening would not mean that there could be more intensive patrolling in the afternoon.
E. The schools in Parktown have introduced a number of after-school programs that will be available to teenagers until 6 p.m. on weekday afternoons.

前提：实施这个measure让teenager晚上不出门，但teenager在下午犯罪
结论：仍然不能减少人们对teenager犯罪的问题的担忧

我搞不懂为什么B是正确答案，B说下午犯得罪比较小比较轻，也不能说明能够减少担忧啊，反而是加强说“确实下午有罪，虽然比较小。（我的理解）”，也不能说明晚上那个就起作用了啊？有可能起作用了（晚上有犯罪）也可能没作用（晚上无犯罪），但是这取决于晚上是否有犯罪现象，而从B选项和原文来看都是得不到这个信息的。

所以我就很迷茫了，求助啊NN们~

prwang

Premise: Citizen there worried about serious crimes committed by local teenagers.  Here, we can basically consider that people don't really care about less serious crimes such as theft or vandalism.

鸭蛋斯密特

prwang 发表于 2017-9-23 10:20
Premise: Citizen there worried about serious crimes committed by local teenagers.  Here, we can basi ...

看一下！               

我要考HEC-Paris

把题目读完整哈,CR的先进就是题目,文字曲解,遗漏.这些一般就是做不对的原因,上面那楼已经用红色标注出来了,就不细说了....