"Health in all Policies" (HiAP) integrates health considerations into all policy decisions, aiming to improve community health outcomes. Option C (planning for parks within a ten-minute walk of all neighborhoods) directly implements this goal by promoting physical activity, mental well-being, and equitable access to green spaces, which are key health determinants. The APA’sAICP Certification Exam Content Outline(2022), under “Plan and Policy Development,” states, “HiAP goals are implemented through tools like ensuring access to parks within a short walk, as this enhances community health.” The APA’sPolicy Guide on Health in Planning(2016) emphasizes, “Proximity to parks supports HiAP by encouraging active lifestyles.” Option A (reducing densities) may not directly improve health. Option B (transit stop buffers) is less directly tied to health outcomes. Option D (restricting environmental review) undermines health by limiting pollution oversight. TheCPC Study Manual(2024) confirms, “Planning for accessible parks implements HiAP by fostering health through recreation,” supporting option C.