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

Fact 2: When it rains, the roots absorb water quickly and the plants store the water in the stems.

Given the two facts above, answer the question "Some plants store water after absorbing it with what?" with the following options: 
- the petals
 - Roundworms
 - energy
 - the roots
 - Roundworms.
 - the succulents
 - fibrous
 - the arms


 

    the roots     