This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology Pa 1 (Immune Response, Antigen-Antibody Reactions, Hypersensitivity, Structure of Immune System, Immunodeficiency Disorders), Subject name: Microbiology
[{'content': 'Which of the following cytokine have endogenous pyrogenic activity? \nSelect and explain. \nA. IL-8, B. IL-6, C. TGF-b, D. IL-3', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cytokine functions IL-3 Multi-CSF(induce growth of all type of hematopoietic cells in soft agar) IL-6 Endogenous pyrogenic activity Promote B-cell differentiation IgG production IL-8 Neutrophil chemotactic factor TNF-beta Induce other cytokines IL-1 and TNF -alpha are also responsible for pyrogenic avtivity.', 'role': 'assistant'}]