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
A Hemophiliac patient has rheumatoid arthritis. Which drug might be prescribed to relieve the pain? 
Select and explain. 
A. Acetaminophen, B. Acetylsalicylic acid, C. Phenylbutazone, D. Naproxen
A: Acetaminophen
Answer: A: Acetaminophen 
Explanation: None