Correct Answer: A

Rationale: A nurse's role in health policy development involves advocating for policy changes that enhance health outcomes and increase access to care. Nurses contribute their expertise to influence policy decisions that impact patient care, healthcare systems, and public health initiatives. By participating in health policy development, nurses can address healthcare disparities, improve quality of care, and promote the well-being of individuals and communities.

Correct Answer: A

Rationale: Providing clean drinking water is a crucial environmental health intervention as it helps prevent waterborne diseases and promotes overall health. Access to clean drinking water is essential for maintaining public health, especially in preventing illnesses caused by contaminated water sources. Administering medications, conducting health education sessions, and developing health policies are important interventions but are not directly related to environmental health like providing clean drinking water.

Correct Answer: B

Rationale: Understanding the community's needs is a critical factor in community health planning. It allows planners to tailor interventions to address specific issues identified within the community, leading to more effective and impactful health initiatives.

Correct Answer: A

Rationale: Health advocacy involves engaging with policymakers to influence decisions that impact public health. By providing health education to policymakers, individuals can advocate for policies and initiatives that promote public health and address community needs effectively.

Correct Answer: B

Rationale: The high cost of services can be a significant barrier that prevents individuals from accessing necessary health care. Financial constraints can deter people from seeking medical help, leading to negative health outcomes.