In the Lipid Bilayer of a Cell Membrane

In the lipid bilayer of a cell membrane

A) the hydrophobic heads are on the inner and outer surface and the hydrophilic tails in the middle.
B) the hydrophilic heads are on the inner and outer surface and the hydrophobic tails in the middle.
C) there is a random arrangement of phospholipids.
D) the hydrophilic heads are on the inner and outer surface and cholesterol is in the middle.
E) cholesterol is on the inner and outer surface and phospholipids are in the middle.