This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Biochemistry
[{'content': 'Urine osmolality in Diabetes insipidus is \nSelect and explain. \nA. <150 mmol/L, B. <300 mmol/L, C. <600 mmol/L, D. <900 mmol/L', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Diabetes insipidus is condition characterised by excessive thirst excretion of large amounts of severely diluted urine Those with diabetes insipidus continue to uinate large amount of urine in spite of water deprivation.Ref: DM Vasudevan, 7th edition, page no: 373', 'role': 'assistant'}]