This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Special topics, Subject name: Forensic Medicine
[{'content': "Which of the following tests in used to detect semen? \nSelect and explain. \nA. Phenolphthalein test, B. Reine's test, C. Barberio's test, D. Paraffin test", 'role': 'user'}, {'content': 'Answer: C \nExplanation: The Essentials Forensic Medicine & Toxicology Dr.K.S. Narayana Reddy 32nd edition pg no415 Barberio,s Test: the presence of semen is detected,. A saturated aqeuous solution or alchoholic solution ofpicric acid when added to a spermatic fluid produces yellow needle shapedrhombic crystals of spermine picrate.the reaction probably depends on the presence of prostatic secretion', 'role': 'assistant'}]