This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
[{'content': 'CD marker of MALT lymphoma is? - \nSelect and explain. \nA. CD 3, B. CD 5, C. CD 20, D. CD 40 1467.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: MALTOMA is characterised by diffuse infilteration by monoclonal small B lymphocytes. CD 20 is a B cell marker.But its negetive for CD 5 Ref: Harsh Mohan textbook of pathology, 7th edition.Pg no.356,357 Ref Robbins 9/e pg442', 'role': 'assistant'}]