Biology

The correct answer is: B.Facilitated diffusion

Facilitated diffusion is a type of passive transport that requires the help of a transport protein to move substances across the cell membrane. This is necessary for molecules that are too large or polar to pass through the lipid bilayer on their own. The transport proteins (such as channels or carriers) facilitate the movement of these molecules down their concentration gradient, without the need for energy (ATP).

To clarify the other options:

A.Osmosis is a type of pass...