Fact 1: Most modern gymnosperms are trees with woody trunks.

Fact 2: Woody plants such as trees and shrubs have stiff stems or trunks covered in bark.

Given the two facts above, answer the question "Most modern gymnosperms are trees covered in what?" with the following options: 
- bark
 - sand
 - damage
 - bees
 - leaves
 - growth
 - nektar
 - vines


 

 bark        