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: Ophthalmology
[{'content': 'The parvocellular pathway from lateral geniculate nucleus to visual coex is most sensitive for the stimulus of: \nSelect and explain. \nA. Color contrast, B. Luminance contrast, C. Temporal frequency, D. Saccadic eye movements', 'role': 'user'}, {'content': "Answer: A \nExplanation: Parvocellular pathway is for color vision, texture, shape, fine detail and Magnocellular pathway is for detection of movement, depth, flickers. Ref: Ganong's Review of Medical Physiology, 21st Edition, Page 163", 'role': 'assistant'}]