One of the following is NON-polar molecule

a. fatty acids

b. glucose

c. protein

d. oxygen

a. fatty acids is the correct answer.

Explanation:

fatty acids is NON-polar molecule.

Nonpolar molecules are that molecules which are not soluble in water and fatty acids are not soluble in water.

fatty acids are hydrophobic and the hydrocarbon chain present in fatty acids are nonpolar, thus that's the reason fatty acid is nonpolar.

examples of fatty acids

fats cholesterols oils steroids