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: Pharmacology
[{'content': 'Indomethacin can antagonize the diuretic action of loop diuretics by – \nSelect and explain. \nA. Preventing prostaglandin mediated intrarenal-hemodynamic actions, B. Blocking the action in ascending limb of loop of Henle, C. Enhancing salt and water reabsorption in distal tubules, D. Increasing aldosterone secretion', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]