Answer:
A. Alluvium
Explanation:
Alluvium is the name given to the deposit of sediments caused by a stream. In a more scientific way, we can define the word "alluvium" as a region where sediment deposits formed by a body of water have drainage margins. The alluvium can be created in different regions, these regions can even be formed by leaks or deltas, but it always occurs with the overflow of sediments through the channels of the stream.
