This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'False regarding erythema infantosum is - \nSelect and explain. \nA. Caused by HHV 6, B. Marked erythema of the cheeks or slapped cheek apperance often with relative circum-oral pallor, C. Infection during pregnancy can result in hydrops fetalis due to fetal anemia, D. Ahritis is a complication', 'role': 'user'}, {'content': "Answer: A \nExplanation: Parvovirus B19 infection usually present as respiratory infection with an erythematous maculopapular rash and ahralgia.In its full blown form that is erytha infectiosum it stas with prominent erythema of cheeks spreading to the limbs and trunk followed by lymohadenopathy and ahralgia. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:554", 'role': 'assistant'}]