Answer:
The correct answer for this one, is e. because CH2O is a chemical compound of the aldehyde type and the aldehydes are only at the monosaccharides (carbohydrates)
Step-by-step explanation:
As you should know, amino acid contains a carboxyl group and an amino group, DNA it is compounded by a pentose, nitrogen base and a phosphate group, the triglyreceride are long chain fatty acid compounds, so much of CH2O. The proteins are very complex structures to have only those elements.