As national income rises,

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As national income rises, there is typically an increase in access to healthcare, sanitation, education, and food, which can lead to a reduction in infant mortality rates. However, the increase in national income can also lead to an increase in industrialization and urbanization, which can contribute to environmental problems such as emissions from fossil fuels and depletion of forest reserves. Water problems may also persist or even worsen in some cases, depending on the approach to managing water resources. Therefore, options A, C, and D are not universal outcomes of rising national income, while option B is a more consistent trend.

As National Income Rises