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: Pharmacology
1, 25 dihydrocholecalciferol acts on ? 
Select and explain. 
A. Surface receptors, B. Cytosolic receptors, C. Intranuclear receptors, D. None of the above
C: Intranuclear receptors
Answer: C: Intranuclear receptors 
Explanation: Ans. is 'c' i.e., Intranuclear receptors