How does insulin signaling maintain glucose concentration gradients between the bloodstream and the cell?

• A. By decreasing glucose concentration inside the cell through conversion to glycogen, allowing continued uptake.
• B. By increasing glucose concentration inside the cell, preventing further uptake.
• C. By increasing glucose concentration in the bloodstream, preventing cellular uptake.
• D. By inhibiting GLUT4 translocation, maintaining high glucose levels in the bloodstream.

Answer: (A)