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: Radiology
[{'content': 'Most common hormone deficiency seen after intracranial radiation therapy – \nSelect and explain. \nA. Prolactin, B. Gonadotropins, C. ACTH, D. Growth hormone', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Growth hormone deficiency is a most common endocrinal complication of intracranial radiotherapy.', 'role': 'assistant'}]