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': 'Classic triad of congenital rubella includes all except - \nSelect and explain. \nA. Cataract, B. Deafness, C. Retinitis, D. CHD', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cardiac defects, cataract, deafness constitute a classical triad REF:ANATHANARAYANAN MICROBIOLOGY NINTH EDITION PAGE.555', 'role': 'assistant'}]