请教GWD-TN-14， Q22

kakadinho

22. GWD-18-Q22
In each of the past five years, Barraland’s prison population has increased.Yet, according to official government statistics, for none of those years has there been either an increase in the number of criminal cases brought to trial, or an increase in the rate at which convictions have been obtained.Clearly, therefore, the percentage of people convicted of crimes who are being given prison sentences is on the increase.

Which of the following, if true, most seriously weakens the argument?



A.In Barraland the range of punishments that can be imposed instead of a prison sentence is wide.

B.Over the last ten years, overcrowding in the prisons of Barraland has essentially been eliminated as a result of an ambitious program of prison construction.

C.Ten years ago, Barraland reformed its criminal justice system, imposing longer minimum sentences for those crimes for which a prison sentence had long been mandatory.
D.Barraland has been supervising convicts on parole more closely in recent years, with the result that parole violations have become significantly less frequent.

E.The number of people in Barraland who feel that crime is on the increase is significantly greater now than it was five years ago.
我知道答案C是给出它因的削弱， 为什么D不对呢？ D说监管假释更严格了，所以假释violation更少了，那么很多本来假释出狱的人就呆在监狱里了，这样监狱里人就比以前多了。难道不是它因么？

真心求教。

zznn1988

parole violations是假释期间犯罪的意思，D是说在罪犯假释了被放出来回社会了，但在此期间被监管的更严，所以罪犯们心里害怕被逮 导致更少人在此期间在社会上进行犯罪，这都是监狱外头的情况事实，跟监狱里头人多少无关啦。
可能D意思上不是很熟悉，所以lz会造成这样的误解。