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
Which of the following does not secrete interleukin 1 alpha 
Select and explain. 
A. Lymphocyte, B. Monocyte, C. Macrophage, D. Neutrophil
A: Lymphocyte
Answer: A: Lymphocyte 
Explanation: 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