This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
[{'content': 'Indication for PAIR treatment in hydatid cyst \nSelect and explain. \nA. Size >5 cm, B. Multiloculated, C. Cyst in lung, D. Recurrence after surgery', 'role': 'user'}, {'content': 'Answer: A \nExplanation: PAIR Puncture, aspiration, injection and reaspiration IIt is the preferred method of treatment for anatomically and surgically appropriate lesions Contraindication - complicated cysts ( communicating with biliary tract) surgery remains the treatment of choice for those not possible or refractory to PAIR', 'role': 'assistant'}]