Cell A has a surface area of 50\, \mu\text{m}^250μm 2 50, mu, start text, m, end text, squared and a volume of 10\, \mu\text{m}^310μm 3 10, mu, start text, m, end text, cubed. Cell B has a surface area of 14\, \mu\text{m}^214μm 2 14, mu, start text, m, end text, squared and a volume of 7\, \mu\text{m}^37μm 3 7, mu, start text, m, end text, cubed. Using the information above, determine the surface-area-to-volume ratio of each cell. What is the SA:V ratio of the cell that will exchange materials with its environment at the fastest rate of diffusion?