Answer:
D, structural functionalism
Step-by-step explanation:
The structural functionalism approach sees society as a system which is complex. The functioning of one part of society affects other parts of society. This approach looks at society's functioning at a macro level. According to this approach society also evolves like organisms.
Here, Professor Middler is stating the relationship between the rise of crime and employment of Police. This indicates he is looking at society though a broader perspective and how one part of society affects other parts of society.