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: ENT
Rienke's edema in vocal cord is 
Select and explain. 
A. Mucosal, B. Submucosal, C. Muscular layer, D. Involves all the layer
B: Submucosal
Answer: B: Submucosal 
Explanation: None