This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'What was the slogan for World health day 2012? \nSelect and explain. \nA. Good health adds life to years, B. No action today no cure tomorrow, C. 1000 cities - 1000 lives, D. Save lives. Make hospitals safe in emergencies', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Each year, the WHO celebrates the world health day on April 7th, the day when WHO was founded. There is a theme for each year with a catchy slogan. YEAR THEME SLOGAN 2012 Aging and health Good health adds life to years 2011 Antimicrobial resistance No action today no cure tomorrow 2010 Urbanization and health. 1000 cities - 1000 lives 2009 Resilience and safety of health facilities and the health worker Save lives. Make hospitals safe in emergencies Ref:', 'role': 'assistant'}]