This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
[{'content': 'Most common side effect of 5-fluorouracil us \nSelect and explain. \nA. G.I toxicity, B. Bone marrow depression, C. Neurotoxicity, D. Cardiotoxicity', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref-KDT 6/e p824 Diarrhea most common adverse effect of 5-FU It can also cause hand and foot syndrome and bone marrow suppression', 'role': 'assistant'}]