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: Gynaecology & Obstetrics
[{'content': 'Strongest stimulus of lactation is by : \nSelect and explain. \nA. Metoclopramide, B. Post paum hemorrhage, C. Bromocripti ne, D. Suckling', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Suckling', 'role': 'assistant'}]