The correct answer is: D) A stubborn police officer who seeks justice.
An archetype is a character that represents an "universal symbol", that means a character that has a common and recurring representation in different cultures or the entire human race. It represents some set of behaviors that are universal and recognizable.
In this case I think the police represents the hero as he seeks for justice no matter the problems he has to overcome. In all cultures this hero figure is distinguished by his goodness and fight against evil in order to restore harmony and justice. Beowulf and Hercules are other examples of heores.
Other archetypes are: the villian, the mentor, the mother figure.
