Why DON'T Water Molecules Located Within a Column of Xylem

Why DON'T water molecules located within a column of xylem sap move apart?

A) Cohesion holds the water molecules to each other; adhesion holds water molecules to the cellulose in plant cell walls.
B) Adhesion holds the water molecules to each other; tension holds water molecules to the cellulose in plant cells walls.
C) Tension holds the water molecules to each other; cohesion holds water molecules to the cellulose in plant cell walls.
D) Adhesion holds the water molecules to each other; cohesion holds water molecules to the cellulose in plant cell walls.