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': 'Which of the following is not a common manifestation of congenital Rubella? \nSelect and explain. \nA. Deafness, B. PDA, C. Aoic stenosis, D. Mental retardation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Most common finding of congenital Rubella is IUGR. Other manifestations are cataract, PDA, Pulmonary stenosis, sensorineural hearing loss meningoencephalitis, pneumonia, hepatitis, bone lucencies, thrombocytopenic purpura, anemia. Late sequelae include motor and mental retardation. Ref: Kliegman, Behrman, Jenson, Stanton, (2007), Chapter 244, "Rubella", In the book, "Nelson\'s Textbook of Pediatrics", Volume 1, 18th Edition, New Delhi, Page 1340', 'role': 'assistant'}]