The answer is option number 4. If you do the math, the sides are simply scaled by 3.
The answer to your question is: Abrasion.
Abrasion occurs when sediments that are located on the shore of a lake, and an ocean accumulate along the shore.
The accumulation of sediment found along the shore of a lake or ocean is called a<em> Abrasion.</em>
I hope this helps! :)
Have a wonderful day!
-LizzyIsTheQueen
It is located in the Eastern part of Africa. it is in Kenya