Fact 1: Trees have woody stems covered with bark.

Fact 2: An elm tree is a type of tree that grows in America.

Given the two facts above, answer the question "what have woody stems covered with bark?" with the following options: 
- bushes
 - h2o
 - elms
 - roses
 - oak
 - dogs
 - Spruce
 - bamboo


 

   elms      