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
Thyroid storm after operation is due to - 
Select and explain. 
A. Inadequate control of hyperthyroidism, B. Massive bleeding, C. Recurrent laryngeal nerve injury, D. Postoperative infection
A: Inadequate control of hyperthyroidism
Answer: A: Inadequate control of hyperthyroidism 
Explanation: None