Meaning: 'Likelihood' refers to the chance or probability that something will happen, in this case, the chance of criminal activity occurring due to certain social factors.

Wrong options:

• expenditure: Expenditure refers to the act of spending money, which does not relate to the probability of crime and is therefore contextually irrelevant.
• technique: Technique implies a method or way of doing something, which does not fit the context of discussing the probability of criminal behavior.
• measurement: Measurement refers to the process of quantifying something, which does not align with the idea of risk or probability in this context.

Correct answer: promise

Explanation: The word 'promise' is suitable here as it conveys the potential for success or positive outcomes from the programs mentioned. It fits both grammatically and contextually, indicating that these initiatives show hope in addressing root causes of crime.

Meaning: 'Promise' in this context means the potential or likelihood of achieving positive results, suggesting that the programs have the capacity to effectively tackle the issues at hand.

Wrong options:

• surface: Surface refers to the outer layer or appearance of something, which does not convey the idea of effectiveness or potential success in this context.
• appreciation: Appreciation implies recognition or understanding of value, which does not fit the context of demonstrating effectiveness in addressing crime-related issues.
• content: Content refers to the material contained within something, which does not relate to the effectiveness or potential of the programs discussed.

Correct answer: However

Explanation: The word 'However' serves as a discourse marker that introduces a contrast to the previous statement about the programs' effectiveness. It fits grammatically and contextually, indicating a shift in perspective regarding the criticisms of these programs.

Meaning: 'However' means 'on the other hand' or 'nevertheless,' signaling that there is an opposing viewpoint to consider regarding the effectiveness of the programs.

Wrong options:

• Thus: 'Thus' indicates a conclusion or result, which does not fit the context of introducing a contrasting argument.
• Although: 'Although' is a subordinating conjunction that introduces a dependent clause, making it grammatically incorrect to use as a standalone transition in this context.
• Alongside: 'Alongside' suggests something occurring simultaneously, which does not convey the intended contrast between the effectiveness of the programs and the criticisms.

Correct answer: overlook

Explanation: The verb 'overlook' is appropriate here as it means to fail to notice or consider something, which aligns with the criticism that the programs may miss deeper systemic issues. It fits grammatically and contextually within the sentence structure.

Meaning: 'Overlook' means to fail to see or consider something important, suggesting that critics believe the programs do not address all necessary factors in crime prevention.

Wrong options:

• undergo: 'Undergo' means to experience or endure something, which does not fit the context of failing to address issues.
• dwell: 'Dwell' means to linger on or think about something for a long time, which does not convey the idea of missing or ignoring issues.
• fold: 'Fold' means to bend or collapse, which is unrelated to the context of addressing or failing to address systemic issues.