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
What is true about ischiorectal fossa: 
Select and explain. 
A. Apex is formed by obturater internus, B. Levater ani forms the roof, C. Lateral wall is formed by inferior pubic ramus, D. Communicates with the other side Posteriorly
D: Communicates with the other side Posteriorly
Answer: D: Communicates with the other side Posteriorly 
Explanation: D. i.e. Communicates with other side posteriorly