陈向东逻辑-假设题

请教各位指点迷津~~

3、Some people assert that prosecutors should be allowed to introduce illegally obtained evidence in criminal trials if the judge and jury can be persuaded that the arresting officer was not aware of violating or did not intend to violate the law while seizing the evidence. This proposed “good-faith exception” would weaken everyone’s constitutional protection, lead to less careful police practices, and promote lying by law enforcement officers in court.

The argument above for maintaining the prohibition against illegally obtained evidence assumes that:

A. defendants in criminal cases should enjoy greater protection from the law than other citizens do.

B. Law enforcement authorities need to be encouraged to pursue criminals assiduously.

C. The legal system will usually find ways to ensure that real crimes do not go unprosecuted.

D. The prohibition now deters some unlawful searches and seizures.

E. Courts should consider the motives of law enforcement officers in deciding whether evidence brought for forward by the officers is admissible in a trial.

答案是D

我选的是C

现在看看C确实是不太对，想问D的逻辑是怎样的？