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: Surgery
Rohr's stria found in the placenta are due to: 
Select and explain. 
A. Deposition of fibrin, B. Blood vessels, C. Langhan's cells accumulation, D. Hofbauer cells accumulation
A: Deposition of fibrin
Answer: A: Deposition of fibrin 
Explanation: Deposition of fibrin There may be inconsistent deposition of fibrin called Rohr's stria at the bottom of the intervillous space and surrounding the fastening villa.