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: Skin
[{'content': 'Slapped cheek appearance is caused by ? \nSelect and explain. \nA. Parvo virus, B. Measles, C. Rubella, D. HHV-6', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Parvo virus", 'role': 'assistant'}]