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': 'Most common phase II drug metabolizing reaction is: \nSelect and explain. \nA. Glucuronidation, B. Acetylation, C. Oxidation, D. Glutathione conjugation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: -\xa0Glucuronidation\n\n\xa0 \xa0Carried out by UDP -\xa0Glucuronosyltransferase.\n\xa0 \xa0Results in increased molecular weight of the drug.\n\xa0 \xa0Helps in excretion in bile.', 'role': 'assistant'}]