Which of the following is an effect of the following drugs?

A. Drug A is an agonist of the Vasopressin2 Receptor (V2R).  High levels of Drug A in the extracellular spaces surrounding cells of the kidney collecting ducts will lead to high levels of endocytosis of AQP2 molecules in these cells.

B. Drug B is an agonist of the Insulin Receptor.  High levels of Drug B in the extracellular spaces surrounding fat cells will lead to high levels of endocytosis of GLUT4 molecules in these cells.

C. Drug C is an antagonist of the Insulin Receptor.  High levels of Drug C in the extracellular spaces surrounding skeletal muscle cells will lead to high levels of exocytosis of GLUT4 molecules in these cells.