Phospholipid bilayers are a major component of biological membranes. In a phospholipid bilayer
a. the hydrophobic fatty acid tails are in contact with the water on the inside and outside of the bilayer.
b. the hydrophobic fatty acid tails are in the center of the bilayer.
c. the hydrophilic fatty acid tails are in contact with the water on the inside and outside of the bilayer.
d. the hydrophilic heads are in the center of the bilayer.
e. the hydrophobic heads are in the center of the bilayer.
