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
Which of the following is not true about fibroblasts? 
Select and explain. 
A. Secrete & Synthesize collagen, B. Derived from blood precursor cells, C. Migrate to wound along fibres used as scaffold, D. Large fibrin clot acts as barrier to fibroblast penetration
B: Derived from blood precursor cells
Answer: B: Derived from blood precursor cells 
Explanation: None