In a Biological Membrane, the Phospholipids Are Arranged in a _______

In a biological membrane, the phospholipids are arranged in a _______, with the _______.

A) bilayer; fatty acid tails pointing toward each other
B) bilayer; fatty acid tails facing outward
C) single layer; fatty acid tails facing the interior of the cell
D) single layer; phosphorus-containing region facing the interior of the cell
E) bilayer; phosphorus groups in the interior of the membrane