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': 'The most common ophthalmic affection of diptheria is – \nSelect and explain. \nA. Ptosis, B. Total ophthalmoplegia, C. Isolated ocular palsies, D. Ophthalmoplegia extema', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Complications \n\nObstruction of the respiratory tract by pseudo membrane\nMyocarditis\nPolyneuropathy\nPost diphtheritic paralysis\nOccurs in the 3rd or 4th week\nPalatine and papillary paralysis is characteristic\nSpontaneous recovery is the rule.\nPneumonia\nOther less common complications are renal failure, encephalitis, cerebral infarction, pulmonary embolism and bacteremia or endocarditic.', 'role': 'assistant'}]