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: Anatomy
Branch of facial nerve in facial canal 
Select and explain. 
A. Greater petrosal nerve, B. Nerve to Stapedius, C. Chordatympani, D. All
D: All
Answer: D: All 
Explanation: A. i.e. Greater petrosal nerve; C. i.e. Chorda tympani; B . i.e. N. to stapedius