Which of the Following Is NOT a Way in Which

Multiple Choice

Which of the following is NOT a way in which water contributes to slope failure?

A) Water adds cohesion between the grains of the soil causing it to become unstable.
B) Water adds weight to a slope increasing the driving force.
C) Water can erode the base of a slope decreasing stability.
D) Water can mix with the soil causing debris flows.
E) Water can infiltrate slopes causing slumps.