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: Ophthalmology
Senile ptosis is: 
Select and explain. 
A. Neurogenic, B. Myogenic, C. Aponeurotic, D. Mechanical
C: Aponeurotic
Answer: C: Aponeurotic 
Explanation: Ans/. Aponeurotic