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; True is 
Select and explain. 
A. Common in inadequately prepared patient for surgery, accompanied by excess release of thyroid hormone., B. Tachycardia, hyperpyrexia, dehydration and hyperexcitability is seen., C. Condition of hyperthyroidism accompanied by fever, CNS agitation or depression., D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: None