What is a characteristic of sustainable urban development?

Sustainable urban development emphasizes the long-term viability and health of urban environments, incorporating ecological, social, and economic considerations. The correct choice highlights the importance of integrating ecological considerations into planning processes. This approach ensures that the development meets current needs without compromising the ability of future generations to meet their own needs.

In sustainable urban development, planners and policymakers consider factors such as protecting natural habitats, reducing carbon footprints, and utilizing resources efficiently. This integration not only fosters a more resilient urban environment but also enhances the quality of life for residents by promoting greener spaces and sustainable practices.

The other options represent practices contrary to sustainability. For instance, depletion of natural resources undermines the foundation of sustainability by eroding the very materials and ecosystems necessary for future urban living. A focus on short-term economic gains often leads to decisions that disregard long-term impacts on the environment and community well-being. Finally, the unlimited expansion of urban areas can lead to urban sprawl, which typically results in habitat destruction, increased pollution, and strain on infrastructure, all of which are unsustainable in the long run. Thus, option C stands out as it encapsulates the core principle of sustainable urban development.