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: Social & Preventive Medicine
[{'content': 'Test for detecting argemone oil Contamination does not include – \nSelect and explain. \nA. Nitric acid test, B. Paper chromatography test, C. Aldehyde test, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]