The figure below shows the structural formula of the compound that is extracted from cinnamon essential oil and is responsible for the characterist...

The figure below shows the structural formula of the compound that is extracted from cinnamon essential oil and is responsible for the characteristic flavor and aroma highly appreciated in cuisine and also in the cosmetics industry. Identify the organic function present in this molecule.

The text presents a molecule and asks for the identification of its functional group.
a. Carboxylic acid.
b. Ketone.
c. Ester.
d. Ether.
e. Aldehyde.