This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc. (R.B.C), Subject name: Pathology
The following drug is not associated with pure red cell aplasia: 
Select and explain. 
A. Phenytoin, B. Isoniazid, C. Erythropoietin, D. None of the above
D: None of the above
Answer: D: None of the above 
Explanation: Ans. (d) None of the above(Ref: Robbins 9th/pg 653-655)Drugs: associated with PRCA are Phenytoin, azathio- prine, chloramphenicol, procainamide, isoniazid Q