According to the Fluid Mosaic Model of the Cell Membrane

According to the fluid mosaic model of the cell membrane,

A) protein molecules that perform important cellular functions float in a lipid bilayer.
B) there is a double protein layer in the plasma membrane.
C) there are fats floating in the protein layer.
D) carbohydrates function as membrane channels.
E) nonpolar ends of phospholipids are exposed to water inside and outside the cell.