Which of the Following Statements About Integral Proteins in the Plasma

Which of the following statements about integral proteins in the plasma membrane is false?

A) Most extend all the way through the membrane.
B) Some attach to the glycocalyx.
C) They determine which molecules are transported through the membrane.
D) They are more abundant by volume than the membrane phospholipids.
E) They are involved in the transport of some water-soluble or charged molecules across the membrane.