Final answer:
Julia's study likely exemplifies Social structure theory, which encompasses theories like social disorganization theory and highlights the impact of weakened social ties and control within impoverished communities on crime rates.
Step-by-step explanation:
In Julia's study, which assesses the economic conditions certain groups of individuals are affected by, such as poverty and social disorganization, and the impact this has on crime, is most likely an illustration of C) Social structure theory. This theory includes the social disorganization theory, which posits that crime is most probable in communities with weak social ties and the absence of social control. The theory suggests that individuals from impoverished neighborhoods with high rates of various social issues are at greater risk of engaging in criminal activities, as opposed to those from wealthier, more stable areas with strong social ties and effective social control.Moreover, social control theory states that individuals' connection to society plays a role in preventing deviant behaviors, suggesting that strong social bonds discourage crime. The correlation between neighborhood variables like poverty, family disruption, and social disorganization with the prevalence of crime is well-documented, thus supporting the relevance of social structure theory in Julia's research focus.