The correct option is A GLUT IV
The movement of glucose across the plasma membrane is facilitated by transporters, mainly GLUTs.
The GLUTs (glucose transport proteins) transport glucose across the plasma membrane by means of facilitated diffusion.
GLUT I, GLUT II and GLUT III are insulin-independent glucose transporters.
However, GLUT IV is an insulin-dependent glucose transport protein and is responsible for the majority of glucose transport into muscle and fat cells.