This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'magnocellularr and parvocellular neurons project to ? \nSelect and explain. \nA. layer 2 of visual coex, B. layer 4 and 4c of visual coex, C. layer 6 and 1 of visual coex, D. layer 2 and 3 of visual coretx', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ref : guyton and hall', 'role': 'assistant'}]