This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
[{'content': 'Which of the following is the commonest side effect of the procedure shown below? \nSelect and explain. \nA. Neck stiffness, B. Persistent clonus, C. Retrograde amnesia, D. Arrhythmia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Adverse Effects of ECT A. Memory disturbances: it is the most common side effect of ECT. Both retrograde andanterograde amnesia is seen.retrograde amnesia is much more common.B. Headache, muscle aches, fractures (very rare with modifiedECT), nausea and vomiting.', 'role': 'assistant'}]