This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Poisoning, Subject name: Forensic Medicine
[{'content': 'Borax is - \nSelect and explain. \nA. Gastrointestinal irritants, B. Genitourinary irritants, C. Ecbolics, D. Emmernagogues', 'role': 'user'}, {'content': "Answer: A \nExplanation: borax is boric acid derivative it causes nausea, vomiting (bluish green), haematemesis, diarrhoea (bluish green), epigastric pain. Ref: K.S.Narayan Reddy's Synopsis of Forensic Medicine and Toxicology, 29th edition, Chapter 25, page-293.", 'role': 'assistant'}]