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: Forensic Medicine
[{'content': 'Aboion stick used in criminal aboion causes aboion by the mechanism of \nSelect and explain. \nA. Uterine contraction, B. Stimulation of uterine nerves, C. Uterine infection & necrosis, D. Placental separation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Uterine contraction Aboion stick used in criminal aboion causes aboion by uterine contractionQ', 'role': 'assistant'}]