Fact 1: Astem is used to store water by some plants.

Fact 2: Some plants also store water in their trunks and stems.

Given the two facts above, answer the question "Where do plants store water?" with the following options: 
- watershed
 - Collagen
 - excretory
 - trunks
 - fibrils
 - soil
 - Winter
 - cellulose


 

    trunks     