You are presented with the question "What can some gymnosperms be used as?" and the following answer choices: 
- blanket
 - fuel
 - Seesaw
 - Pet food
 - Dog food
 - edible
 - food
 - organ

Now knowing that most modern gymnosperms are trees with woody trunks and trees are still used for fuel in some places, choose the best answer.


 

  fuel       