You are presented with the question "Plants are multicellular eukaryotes with cell walls composed primarily of what?" and the following answer choices: 
- protein
 - plants
 - leaves
 - chemicals
 - Energy.
 - lignin
 - eukaryotes
 - Energy

Now knowing that plants are multicellular eukaryotes with cell walls made of cellulose and plant cell walls are composed primarily of lignin and cellulose, choose the best answer.


 

      lignin   