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': 'Action of progesterone ? \nSelect and explain. \nA. Increased sensitivity of uterus to oxytocin, B. Inhibits LH secretion, C. Decrease in body temperature, D. Causes proliferative changes in uterus', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Inhibits LH secretion", 'role': 'assistant'}]