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
All are true regarding transforming growth factor-except? 
Select and explain. 
A. Proliferation for fibroblast, B. Proliferation of endothelial cells, C. Chemotaxis of fibroblasts, D. Activation of macrophages
D: Activation of macrophages
Answer: D: Activation of macrophages 
Explanation: Ans. is `d' i.e., Activation of macrophages