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: Physiology
Most afferent fibers from the lateral geniculate nucleus terminate in the primary visual cortex is - 
Select and explain. 
A. Layer 1, B. Layer 2 & 3, C. Layer 4, D. Layer 5 & 6
C: Layer 4
Answer: C: Layer 4 
Explanation: The axons from the lateral geniculate nucleus that form magnocellular pathway end in layer 4 of visual cortex, specifically in its deepest part, layer 4C. Many of the axons that form the parvocellular pathway also end in layer 4C.