This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': "Which of the following is most useful in Rx of Kostmann's Syndrome? \nSelect and explain. \nA. Sargramostim, B. Aldesleukin, C. Oprelvekin, D. Filgrastim", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Filgrastim (G-CSF) Cyclic neutropenia; results best in Rx of Kostmann syndrome Sargramostim (GM-CSF)- Cyclic neutropenia Oprelvekin (interleukin-11) -Thrombocytopenia Aldesleukin (interleukin-2) -Renal cell carcinoma, metastatic melanoma a-interferon- Hepatitis B and C, Kaposi sarcoma, Leukemias, Malignant melanoma b-interferon- Multiple sclerosis g-interferon- Chronic granulomatous disease', 'role': 'assistant'}]