Movement into and out of cells — practice question

Which statement describing how water moves through a leaf is not correct?

• AWater evaporates into an air space from the higher water potential in the cell wall of a mesophyll cell.
• BWater moves from the higher water potential of the cytoplasm of a mesophyll cell to the lower water potential in its cell wall.
• CWater moves from the lower water potential of a xylem vessel to the higher water potential of a mesophyll cell.
• DWater vapour diffuses from an air space, through an open stoma, to the lower humidity of the surrounding air.