This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
[{'content': 'Rituximab is used in all EXCEPT: \nSelect and explain. \nA. Non Hodgkin lymphoma, B. Paroxysomal nocturnal hemoglobinurea, C. Rheumatoid ahritis, D. Systemic lupus erythematosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: RITUXIMAB: It is a chimerized MAb that binds to CD20 B cell antigen expressed on surface of B lymphocytes and B cell lymphomas. It is indicated in: 1)B cell lymphoma 2)Non hodgkin lymphoma 3)Chronic lymphocytic leukemia 4)Auto immune diseases ESSENTIALS OF MEDICAL PHARMACOLOGY K.D.TRIPATHI SEVENTH EDITION PAGE NO:872', 'role': 'assistant'}]