runoff from a river. weathering by waves. erosion of rock debris. a buildup of cooled lava.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A plateau is most likely formed by
Possibilities:
- runoff from a river.
- weathering by waves.
- erosion of rock debris.
- a buildup of cooled lava.

a buildup of cooled lava.