This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Integrated QBank, Subject name: Unknown
[{'content': 'A 70-year-old female presented to the OPD with deforming ahritis of hands which is B/L symmetrical. Various deformities were observed. A lymph nodal mass is also observed in the cervical region. Which of the following markers would be most likely positive if the biopsy of the lymph node is done: - \nSelect and explain. \nA. BCL-2, B. BCL-1, C. BCL-6, D. BCL-3', 'role': 'user'}, {'content': "Answer: C \nExplanation: This is a case of rheumatoid ahritis. 1st image shows the boutonniere's deformity. 2nd image shows the Z-deformity of the thumb. 3rd image shows the trigger finger. Most common lymphoma associated with RA is DLBCL. Most common marker of DLBCL is BCL-6 > BCL-2", 'role': 'assistant'}]