The difference between pinocytosis and receptor-mediated endocytosis is that ________.

• A. Pinocytosis brings only water molecules into the cell, receptor-mediated endocytosis brings in other molecules also
• B. Pinocytosis increases the surface area of the plasma membrane, receptor-mediated endocytosis decreases it
• C. Pinocytosis is nonselective, receptor-mediated endocytosis offers more selectivity
• D. Pinocytosis can concentrate substances from the extracellular fluid, receptor-mediated endocytosis cannot