Question

HELP PLEASE!!!!! 20 POINTS!!!!!!!!!!!11
What happens in a landslide?

A. Earth materials that are no longer held by friction move down a slope.

B. Water moves into an area where it does not belong.

C. Soil washes away into a stream.

D. The upper region of a hill becomes built up by rocks.

Answer 1

The cliffs become over saturated with water allowing it to go down the mountain, causing catastrophic damage

Answer 2

Answer A seems to be the most proper answer to the question. Since a landslide is something getting loose from a mountain or cliff, it is held by friction. Rocks, large pieces of dirt and other objects are help on to steep mountains by friction. 
I hope I was able to help, and if you have any further questions, please let me know.