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 drug belongs to antifolate group: September 2007 
Select and explain. 
A. Erythromycin, B. Doxycycline, C. Pyrimethamine, D. Gentamicin
C: Pyrimethamine
Answer: C: Pyrimethamine 
Explanation: Ans. C: Pyrimethamine