Which describes the population-based public health approach?

• A. Applied to the whole population, with dietary modification, and must be inexpensive and non-invasive
• B. Focused on high-risk individuals with expensive screening tests
• C. Involves mostly invasive procedures
• D. Applies only to clinical settings

Answer: (A)

A population-based public health approach aims to improve health across the entire community by using broad, affordable, non-invasive strategies that shape risk factors at the population level. This fits the description of interventions applied to the whole population, such as dietary modification, and designed to be inexpensive and non-invasive. Strategies that focus only on high-risk individuals with expensive screening, rely on invasive procedures, or are confined to clinical settings do not reflect this broad, cost-conscious, non-invasive approach to public health.