The greatest contribution of root pressure is

Options

A. to re- establish the continuous chains of water molecules in the xylem which often break under the enormous tensions created by transpiration.
B. to play a major role in water movement up tall tress over 50 feet in height.
C. to act as a main driving force to push water from the roots in the xylem towards the leaves .
D. to give water high tensile strength and high capillarity action.

Answer

A