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': 'All of the following are side effects of Linezolid, EXCEPT: \nSelect and explain. \nA. Optic neuropathy, B. Pancytopenia, C. Cardiac arrhythmia, D. Lactic acidosis', 'role': 'user'}, {'content': "Answer: C \nExplanation: Adverse effects may include optic and peripheral neuropathy, pancytopenia, and lactic acidosis. Ref: Harrison's Principles of Internal Medicine, 18th Edition, Page 1379", 'role': 'assistant'}]