When you eat a large meal and your body absorbs a lot of glucose and that makes its way to the interstitial fluid before going into the cell. 100% of the glucose should be absorbed into the cell from the interstitial fluid. Why does nearly all of the glucose enter the cell, rather than only half of it?

A. It is moved by active transport.
B. It is modified by the cell, so there is still more glucose on the outside of the cell than inside it.
C. Insulin forces glucose into the cell against a concentration gradient.
D. The cells make ATP so fast, they use up all the glucose as soon as it enters the cell.