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: Pathology
[{'content': 'Working Formulation" in staging of NHL is based on - \nSelect and explain. \nA. Survival characteristics of cells, B. Morphology of cells, C. Cells of origin, D. None of the above', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Morphology of cellso Grading of NHL by working formulation is based on the morphology of the cells (small or large, cleaved or uncleaved) and on growth pattern (follicular or diffuse).", 'role': 'assistant'}]