Final answer:
Professor Davis, who studies the relationship between crime and socioeconomic status and provides consulting services to law enforcement, is most likely a Sociologist.
Step-by-step explanation:
Professor Davis is conducting research on the relationship between crime and socioeconomic status, which is a key area of interest within the field of sociology. Therefore, the correct answer to the question is D) Sociologist. Sociologists engage in a variety of studies involving social characteristics and their outcomes, such as psychological well-being, community cohesiveness, wealth, and crime rates. They might analyze environmental influences and behavior patterns that contribute to crime or consult with law enforcement to advise on resource allocation based on crime trends. One theoretical framework in sociology that is particularly relevant to crime is Social Disorganization Theory, which focuses on how communities create conditions that may encourage or discourage criminal behavior.