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': 'Rash with Retro-auricular origin is typically seen in, \nSelect and explain. \nA. Rubella, B. Rubeola, C. Chicken pox, D. Mumps', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Rubeola / Measles', 'role': 'assistant'}]