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: Medicine
[{'content': 'Polyuria is urine output more than _________ lit/day \nSelect and explain. \nA. 1, B. 2, C. 3, D. 4', 'role': 'user'}, {'content': 'Answer: C \nExplanation: excessive or abnormally large production and/or passage of urine (>3 L per day in adults). Frequent urination -- accompanying syndrome Diuresis -- increased production and passage of urine Mechanisms of polyuria Due to excretion of increased nonabsorbable solutes(such as glucose) -- SOLUTE DIURESIS Due to excretion of increased water(from a defect in ADH production or renal responsiveness) -- WATER DIURESIS Polyuria is urine output of > 3 L/day Oliguria, defined as <400 mL/24 h Anuria is the complete absence of urine formation (<100 mL) in 24 hr ref : Harrisons 20th ed pg: 292', 'role': 'assistant'}]