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: Surgery
[{'content': 'Lymphovenous anastomosis is done for ? \nSelect and explain. \nA. Filarial lymphoedema, B. Lymphoid cyst, C. Cystic hygroma, D. Malignant lymphoedema', 'role': 'user'}, {'content': "Answer: A \nExplanation: Answer is 'a' i.e. Filarial lymphoedema", 'role': 'assistant'}]