This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
Chimeric human / murine monoclonal antibody'are - 
Select and explain. 
A. Adalimumab, B. Rituximab, C. Muromonab, D. Trastuzumab
B: Rituximab
Answer: B: Rituximab 
Explanation: Monoclonal mouse IgG1 antibody against human CD20 Rituximab has been approved by the FDA for the treatment of various lymphoid malignancies, including B-cell non-Hodgkin's lymphoma and B-cell chronic lymphocytic leukaemia also used in treatment of ebola . Ref Harrison20th edition pg 1078