Which Statement Describes How the Plasmalemma Is Used in Communication

Which statement describes how the plasmalemma is used in communication and sensitivity

A) It serves as a storage site for large amounts of proteins for future use by the cell.
B) It effectively isolates the cytoplasm from the surrounding fluid environment.
C) It contains gated channels that can be opened or closed to regulate the passage of materials.
D) It acts as a site for the attachment of glycoproteins and glycolipids, which act as receptors for molecules present in the extracellular fluid.
E) It provides for specialized connections between neighboring cells.