This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sexual offences and infanticide, Subject name: Forensic Medicine
[{'content': 'Ecbolics are the drugs which \nSelect and explain. \nA. Cause uterine contraction, B. Increase menstrual blood flow, C. Increases sweating, D. Causes vomitting', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ecbolics: They increase uterine contractions, e.g. ergot preparations, synthetic estrogens, pituitary extract, strychnine or quinine. Ref - Krishan Vij textbook of forensic medicine and toxicology 5e pg - 383', 'role': 'assistant'}]