This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brain , Subject name: Anatomy
All are pas of corpus callosum except 
Select and explain. 
A. Forceps minor, B. Forceps major, C. Tapetum, D. Indusium griseum
D: Indusium griseum
Answer: D: Indusium griseum 
Explanation: Thin layer of grey matter in contact with the dorsal surface of corpus callosum Ref: Gray's 39e/p-227