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
Weight gain caused by antipsychotics is due to antagonism of : 
Select and explain. 
A. 5 HT3, B. 5 HT2A, C. 5 HT2B, D. 5 HT2C
D: 5 HT2C
Answer: D: 5 HT2C 
Explanation: None