You are presented with the question "Where do plants store water?" and the following answer choices: 
- watershed
 - Collagen
 - excretory
 - trunks
 - fibrils
 - soil
 - Winter
 - cellulose

Now knowing that astem is used to store water by some plants and some plants also store water in their trunks and stems, choose the best answer.


 

    trunks     