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 is NOT a TNF-neutralizing agent? 
Select and explain. 
A. Infliximab, B. Etanercept, C. Adalimumab, D. Rituximab
D: Rituximab
Answer: D: Rituximab 
Explanation: Rituximab is an anti CD 20 monoclonal antibody while others are anti TNF alpha agents.