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: Pharmacology
[{'content': 'The lymphocytopenia seen a few hours after administration of a large dose of prednisone to a patient with lymphocytic leukemia is due to ? \nSelect and explain. \nA. massive lymphocytic apoptosis, B. Bone marrow depression ., C. Activation of cytotoxic cells, D. Stimulation of natural killer cell activity', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Massive lymphocytic apoptosis o Glucocoicoid induce programmed cell death (apoptosis) in lymphoid malignancies.", 'role': 'assistant'}]