This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidneys and Body Fluids, Subject name: Physiology
Dilution segment in nephron is: 
Select and explain. 
A. Ascending LOH, B. Descending LOH, C. Collecting tubule, D. Proximal tubule
A: Ascending LOH
Answer: A: Ascending LOH 
Explanation: Ans. a. Ascending LOH