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
All of the following are monoclonal antibodies against CD-20 except : 
Select and explain. 
A. Rituximab, B. Ofatumumab, C. Ocrelizumab, D. Brentuximab
D: Brentuximab
Answer: D: Brentuximab 
Explanation: Rituximab, Ofatumumab, Ocrelizumab & Obinutuzumab are monoclonal antibodies against Cd-20.
Brentuximab acts against CD30.