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
Suprastructure of stapes develops from 
Select and explain. 
A. Ectoderm, B. Endoderm, C. Mesoderm, D. Neuro Ectoderm
C: Mesoderm
Answer: C: Mesoderm 
Explanation: Mesoderm of 2nd Branchial arch.