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': 'International Red Cross was founded by: \nSelect and explain. \nA. Henry Dunant, B. John D Rockfeller, C. Marie Curie, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The Red Cross is a non-political international humanitarian organisation founded by Swiss businessman Henry Dunant. Ref: Park 21st edition page: 858.', 'role': 'assistant'}]