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
True about Parathyroid hormone: 
Select and explain. 
A. It is steroidal in nature, B. Stimulate 1, 25 D3 formation, C. Inhibits Ca2+ absorption from the intestines, D. All
B: Stimulate 1, 25 D3 formation
Answer: B: Stimulate 1, 25 D3 formation 
Explanation: B i.e. Stimulate 1, 25 D3 formation