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
Facial recess or the posterior sinus is bounded by: 
Select and explain. 
A. Medially by the veical pa of VII nerve, B. Laterally by the chorda tympani, C. Above by the fossa includis, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Facial recess or Posterior sinus - It is a depression in the posterior wall of the middle ear. It is bounded by: Medially - Veical pa of VIII nerve Laterally - Chorda tympani Above - Fossa incudis