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': 'Which of the following does not secrete interleukin 1 alpha \nSelect and explain. \nA. Lymphocyte, B. Monocyte, C. Macrophage, D. Neutrophil', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Interleukin 1 alpha (IL-1a) also known as hematopoietin 1 is a cytokine of the interleukin 1 family that in humans is encoded by the IL1A gene', 'role': 'assistant'}]