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: Psychiatry
[{'content': 'A middle aged man presented with pain in back, lack of interest in recreational activities, low mood, lethargy, decreased sleep and appetite for two months. There was no history suggestive of delusions or hallucinations. He did not suffer from any chronic medical illness. There was no family history of psychiatric illness. Routine investigations including haemogram, renal function tests, liver function tests electrocadiogram did not reveal any abnormality. This patient should be treated with - \nSelect and explain. \nA. Haloperidol, B. Sertraline, C. Alprazolam, D. Olanzapine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: This patient has (for 2 months)\n\ni)\xa0Lack of interest \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\nii) Low mood\xa0\n\xa0iii) Loss of energy / fatigue (lethargy)\xa0\xa0 \xa0\xa0\niv) Decreased sleep\xa0\nv) Decreased appetite\xa0\xa0 \xa0 \xa0 \xa0 \xa0\n\nDiagnosis is major depression\xa0→\xa0Antidepressant should be given. Amongst the given options only sertaline is antidepressant.', 'role': 'assistant'}]