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': 'The role of htirnan placental lactogen is : \nSelect and explain. \nA. Stimulate milk production, B. Fetal breast development, C. Growth of fetus, D. Endocrine regulation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Growth of fetus', 'role': 'assistant'}]