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': 'Emmenagogues 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: B \nExplanation: Emmenagogues: These are drugs that initiate or increase menstrual flow, e.g., estrogen, borax, sanguinarine, savin, etc. Ref - Krishan Vij textbook of forensic medicine and toxicology 5e pg : 383', 'role': 'assistant'}]