Which of the Following Statements Explaining the Differences in Number

Which of the following statements explaining the differences in number and types of peripheral proteins found on the inner and outer surfaces of cell membranes is correct?

A) The functions of the membrane differ on the inside and outside of the cell.
B) Not all proteins can pass through the membrane and, thus, more accumulate on the inside.
C) Proteins on the outside of the membrane are synthesized at a slower rate than proteins on the inside of the membrane.
D) Proteins on the outside of membrane are made extracellularly and are unable to penetrate the phospholipid bilayer and enter the cell.
E) The external peripheral proteins are weakly attached to the membrane and are readily washed away.