Mark the correct statement?

The diffusion rate depends on the size of the substances; obviously smaller substances diffuse faster. The diffusion of any substance across a membrane also depends on its solubility in lipids, the major constituent of the membrane. Substances soluble in lipids (hydrophobic) diffuse through the membrane faster.  Substances that have a hydrophilic moiety, find it difficult to pass through the membrane; their movement has to be facilitated.