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 antimalarial drug is implicated in causing hypoglycemia ? 
Select and explain. 
A. Chloroquine, B. Pyrimethamine, C. Quinine, D. Primaquine
C: Quinine
Answer: C: Quinine 
Explanation: None