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
The primary effect of calcitonin is: 
Select and explain. 
A. Bone deposition, B. Bone resorption, C. Increases intestinal absorption of calcium, D. Decreases intestinal absorption of calcium
A: Bone deposition
Answer: A: Bone deposition 
Explanation: None