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
Area that lies immediately lateral to the anterior perforating substance is - 
Select and explain. 
A. Orbital gyrus, B. Uncus, C. Optic chiasma, D. Limen Insulae
D: Limen Insulae
Answer: D: Limen Insulae 
Explanation: Limen insula lies immediately lateral to substantia perforate anterior (i.e. anterior perforating substance).