This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular Embryology& Anatomy, Subject name: Ophthalmology
[{'content': 'Not true regarding M cells \nSelect and explain. \nA. Larger cells, B. Color contrast, C. High Luminous contrast, D. Low Spatial frequency', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Color contrast is seen by P cells and not M Cells PARALLEL PROCESSING M CELL P CELL COLOR CONTRAST NO YES LUMINANCE CONTRAST HIGHER LOWER SIZE LARGER CELLS SMALLER CELLS SPATIAL FREQUENCY LOWER HIGHER TEMPORAL FREQUENCY HIGHER LOWER', 'role': 'assistant'}]