Meaning: 'Access' refers to the ability to obtain or make use of something, in this case, resources that are more readily available in urban settings.

Wrong options:

• intensity: 'Intensity' refers to the degree of strength or force, which does not fit the context of gaining entry to resources.
• evaluation: 'Evaluation' means assessing or judging something, which is unrelated to the concept of obtaining resources.
• visibility: 'Visibility' pertains to how visible something is, which does not relate to the ability to access resources.

Correct answer: sustainably

Explanation: The word 'sustainably' is an adverb that modifies the verb 'managed,' indicating that management should be done in a way that can be maintained over time, fitting both grammatically and contextually within the sentence.

Meaning: 'Sustainably' means in a manner that does not deplete resources or harm the environment, ensuring long-term viability.

Wrong options:

• optically: 'Optically' relates to vision or sight, which does not apply to the management of cities.
• conversely: 'Conversely' indicates a contrast, which does not fit the context of how cities should be managed.
• reluctantly: 'Reluctantly' means unwillingly, which does not convey the proactive approach needed for effective urban management.

Correct answer: quality

Explanation: The word 'quality' fits grammatically as a noun that describes the standard of life, aligning contextually with the negative impacts of urban issues on residents' lives.

Meaning: 'Quality' refers to the standard or level of something, in this case, the overall standard of life experienced by residents.

Wrong options:

• design: 'Design' refers to the plan or arrangement of something, which does not relate to the standard of living.
• decline: 'Decline' indicates a decrease, which does not fit the context of describing life positively.
• frequency: 'Frequency' refers to how often something occurs, which is unrelated to the standard of living.

Correct answer: intensify

Explanation: The word 'intensify' is a verb that indicates an increase in severity or strength, fitting grammatically and contextually as it describes how urban problems will worsen if not managed properly.

Meaning: 'Intensify' means to become more intense or severe, indicating that urban issues will escalate without proper management.

Wrong options:

• resonate: 'Resonate' means to produce or be filled with a deep, full sound, which does not apply to the context of urban problems worsening.
• recover: 'Recover' implies returning to a previous state, which is not relevant to the worsening of urban issues.
• challenge: 'Challenge' refers to a difficulty or obstacle, which does not convey the idea of worsening conditions.