The total solute concentration of a red blood cell is about 2%. Sucrose cannot pass through a red blood cell’s plasma membrane, but water and urea can. Osmosis will cause such as cell to shrink the most when the cell is immersed in which of the following solutions?
a. a hypertonic sucrose solution
b. a hypotonic sucrose solution
c. a hypertonic urea solution
d a hypotonic urea solution