Compare the surface-area-to-volume ratios of the three spheres representing cells. The diagram shows three spheres, A (r = 1mm, Surface area = 4π, Volume = 4/3 π); B (r = 2mm, Surface area = 16π, Volume = 32/3 π); C (r = 3mm, Surface area = 36π, Volume = 108/3 π) Which of the three cells, if any, has the greatest surface-area-to-volume ratio? A. The cell with radius 1 B. The cell with radius 2 C. The cell with radius 3 D. All three cells have the same surface-area-to-volume ratio.