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: Pathology
[{'content': 'All of the following are Normal average values of Urine; Except \nSelect and explain. \nA. Albumin to Globulin ratio = 4:1, B. Serum potassium 4.5-6 mg / 100 ml, C. Serum alkaline phosphate 1..5-5 Bodansk unit, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]