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
Which one of the following is NOT an ergot alkaloids 
Select and explain. 
A. Bromocriptine, B. Lysergic acid diethylamide (LSD)., C. Ketanserin, D. Methysergide
C: Ketanserin
Answer: C: Ketanserin 
Explanation: None