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 of the following is not a 4 — Aminoquinolone? 
Select and explain. 
A. Chloroquine, B. Amodiaquine, C. Primaquine, D. Mefloquine
C: Primaquine
Answer: C: Primaquine 
Explanation: None