As you can see in this model, eugenol contains a group of three carbon atoms and five hydrogen atoms that...

As you can see in this model, eugenol contains a group of three carbon atoms and five hydrogen atoms that is not part of guaiacol's chemical structure.
Because this group is present in eugenol and not in guaiacol, some scientists think the group could be responsible for eugenol's clove flavor. This means that other guaiacol derivatives with the same group of carbon and hydrogen atoms may also have a clove flavor.
The models below show the chemical structures of three other guaiacol derivatives.
Select the two derivatives that are most likely to have a clove flavor like eugenol.
How are substances represented by chemical formulas and models?