You are presented with the question "What are fibers composed of?" and the following answer choices: 
- lmestone
 - cellulose
 - ribosomes
 - animal fur
 - plastic
 - produce light
 - cellulite
 - Hemoglobin

Now knowing that plants use cellulose for their cell walls and most plant fibers are comprised of cellulose, choose the best answer.


 

  cellulose       