Which of the Following Statements About the Plasma Membrane Is

Which of the following statements about the plasma membrane is true?

A) The plasma membrane is symmetrical (on average) around the plane between the inner and outer halves.
B) The carbohydrate portion of glycoproteins is only found on the part of the protein facing the cytoplasm.
C) The carbohydrate portion of glycoproteins is only found on the part of the protein facing the extracellular fluid.
D) The carbohydrate portion of glycoproteins is found on both the extracellular facing and intracellular facing part of the protein.
E) There are no glycoproteins in the plasma membrane.