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: Pediatrics
[{'content': 'All of the following are manifestations of congenital rubella, EXCEPT: \nSelect and explain. \nA. Deafness, B. Cataract, C. Cardiac defects, D. Hydrocephalus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Damage to the fetus is most likely when maternal infection occurs during the first 2 months of pregnancy, although there is risk associated with infection up to 5 months. The classic triad for congenital rubella syndrome (CRS) is sensorineural deafness, eye abnormalities--especially retinopathy, cataract and microphthalmia, congenital hea disease--especially patent ductus aeriosus. Other manifestations of CRS may includes: Spleen, liver or bone marrow problems Mental retardation Small head size (microcephaly) Eye defects Low bih weight Thrombocytopenic purpura (presents as a characteristic blueberry muffin rash) Hepatomegaly Micrognathia', 'role': 'assistant'}]