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: Unknown
latrogenic traumatic facial nerve palsy is most commonly caused during: 
Select and explain. 
A. Myringoplasty, B. Stapedectomy, C. Mastoidectomy, D. Ossiculoplasty
C: Mastoidectomy
Answer: C: Mastoidectomy 
Explanation: Other Operations where Facial Nerve may be Damaged- Stapedectomy- Removal of acoustic neuroma