Explanation: Public transportation system expansion (A) addresses a key social determinant of health (transportation barriers), improving access to healthcare, employment, and healthy food, with broad population impact. Clean syringes (B), tobacco control (C), and obesity programs (D) have narrower scopes. NAHQ prioritizes systemic SDOH interventions.
[: NAHQ CPHQ Study Guide, Population Health and Care Transitions Section, “Social Determinants of Health Interventions”; NAHQ CPHQ Practice Exam, Population Health Strategies., ]
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