According to Fick's Law of Diffusion, Which Would Contribute to a Higher

According to Fick's law of diffusion, which would contribute to a higher rate of diffusion of respiratory gases?

A) A respiratory membrane with a large rather than a small surface area
B) Water instead of air as the medium
C) Long rather than short diffusion distance
D) A small rather than large difference in partial pressures of the gas on either side of the respiratory membrane
E) Low rather than high temperature