Section BRead this paragraph and answer the questions. As cities grow, they bring both opportunities and challenges for public health. Urbanisation often leads to overcrowding, inadequate sanitation, and pollution, which can contribute to the spread of infectious diseases, such as tuberculosis and cholera. Additionally, urban lifestyles may increase the risk of non-communicable diseases such as obesity and diabetes due to sedentary behaviour and unhealthy diets. Limited access to healthcare services in densely populated urban areas further exacerbates these health concerns. Some of the strategies to governments and health organisations can adopt to address urban public health issues include improving sanitation, promoting healthy lifestyles, and expanding healthcare infrastructure. Ultimately, addressing public health challenges in urban areas requires a multi-faceted approach that considers social, economic, and environmental factors. Fill in the gap with ONE WORD from the paragraph.3. In rapidly growing cities, affordable healthcare services may be Answer Question 3[input].简答题