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: Pathology
Fibrosis is due to - 
Select and explain. 
A. TGF-β, B. TNF -α, C. IL-7, D. IL-10
A: TGF-β
Answer: A: TGF-β 
Explanation: Growth factors and cytokines involved in regeneration and wound healing