Final answer:
In the American court system, police might view the defense as an obstacle to justice because it challenges the prosecution's efforts to secure a conviction. option d is the correct answer.
Step-by-step explanation:
Since they are adversaries at trial, the police may consider the defense an obstacle to justice.
In the American court system, the prosecution is responsible for proving the accused's guilt, while the defense aims to maintain their client's innocence and establish reasonable doubt.
The police work closely with the prosecution, so it could be perceived that they view the defense, which aims to challenge the prosecution's case, as a hindrance to their notion of justice, particularly when their goal is to secure a conviction.