You are presented with the question "what helps assemble proteins?" and the following answer choices: 
- h2o
 - Veins and arteries.
 - the body's largest organ
 - calcium
 - ribonucleic acid
 - DNA
 - oxidation reaction
 - Chemical energy

Now knowing that dNA contains genetic instructions for proteins, and RNA helps assemble the proteins and rNA RNA, or ribonucleic acid, is a constituent of all living cells and many viruses, choose the best answer.


 

     ribonucleic acid    