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: Physiology
[{'content': 'All of the following pituitary hormones decrease the stimulatory control of pituitary except: \nSelect and explain. \nA. Prolactin., B. FSH., C. LH., D. Oxytocin.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]