Which of the following types of membrane transport is best matches with the membrane protein that allows for that type of transport?

A. Osmosis may occur through channels such as Na+ channels
B. Passive transport may occur through pumps such as Na+/K+ ("NEX") pumps
C. Simple diffusion may occur through symporters such as Na+-Glucose symporters ("SGLUT")
D. Passive transport may occur through carriers such as glucose carriers ("GLUT")