This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nasolacrimal Disorders, Subject name: Ophthalmology
[{'content': "Not a cause for Mikulicz's syndrome:- \nSelect and explain. \nA. Leukemia, B. Lymphosarcoma, C. Sarcoidosis, D. Diphtheria", 'role': 'user'}, {'content': "Answer: D \nExplanation: Diphtheria is not a recognised cause for Mikulicz's syndrome Mikulicz's syndrome Bilateral symmetrical enlargement of lacrimal and salivary glands Causes Leukemia Lymphosarcoma Benign Lymphoid hyperplasia Hodgkin's disease Sarcoidosis Tuberculosis", 'role': 'assistant'}]