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': 'True about Parathyroid hormone: \nSelect and explain. \nA. It is steroidal in nature, B. Stimulate 1, 25 D3 formation, C. Inhibits Ca2+ absorption from the intestines, D. All', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Stimulate 1, 25 D3 formation', 'role': 'assistant'}]