This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Considerations - Infectious Diseases, Subject name: Pediatrics
[{'content': 'In which disease a generalized papular rash, fever, conjunctivitis & lesion on buccal mucosa shown below are seen? \nSelect and explain. \nA. Mumps, B. Measles, C. Chickenpox, D. Rubella', 'role': 'user'}, {'content': "Answer: B \nExplanation: b. MeaslesA red lesion with a whitish spot on buccal mucosa, suggestive of Koplik's spot, along with a papular rash, fever & conjunctivitis, suggest a diagnosis of Measles", 'role': 'assistant'}]