You are presented with the question "Biodiversity increases the productivity and stability of what?" and the following answer choices: 
- ferns
 - fungi
 - animals
 - bushes
 - trees
 - wetland
 - oceans
 - plants

Now knowing that biodiversity increases the productivity and stability of ecosystems and oceans are one of the largest ecosystems in the world, choose the best answer.


 

       oceans  