You are presented with the question "What type of deposit fans out into the ocean?" and the following answer choices: 
- coral reef
 - Loose
 - rocks
 - patch reefs
 - erosion
 - alluvial
 - loose soil
 - Sediment

Now knowing that adelta is formed by deposition of sediment at the mouth of a river by water fanning out and alluvial deposits can form deltas where the river flows into a lake or ocean, choose the best answer.


 

      alluvial   