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Public health systems across the world are facing mounting pressure due to rising life expectancy, changing disease patterns, and increasing healthcare costs. While advances in medical technology have improved diagnostic accuracy, unequal access to care continues to remain a [---1---] concern, particularly in rural and economically weaker regions. Preventive healthcare, though widely acknowledged as cost-effective, is often [----2----] in policy planning, leading to a greater burden of avoidable illnesses. As a result, patients frequently become [----3-----] with healthcare institutions that appear reactive rather than proactive. Experts therefore argue that sustainable health reform requires a [----4----] approach that prioritizes prevention, accessibility, and long-term resilience. Choose the most appropriate option to fill in the blank [3] :