Which statement best defines the public health system?

• A. Private hospitals and clinics only
• B. All governmental and nongovernmental organizations and agencies that contribute to improvement of the health of populations
• C. International organizations outside the country
• D. Individual health care providers

Answer: (B)

The main idea being tested is the scope of who makes up the public health system and its focus on population health. The best description includes both governmental and nongovernmental organizations and agencies that contribute to the health of populations. This reflects public health’s broad, collaborative nature: it isn’t limited to hospitals or individual clinicians, and it goes beyond any single private provider. It encompasses agencies at various levels of government, professional groups, community organizations, and NGOs working together to prevent disease, promote health, and protect the public’s well-being.

The other options miss this breadth: private hospitals and clinics focus on care for individuals, not population-wide health; international organizations outside the country are part of global health efforts, not the domestic public health system; and individual health care providers concentrate on treating patients rather than improving health at the population level.