Answer:
The molecule that is small and non-polar from the given options is:
C) Oxygen
Explanation:
Oxygen (O2) is a small molecule composed of two oxygen atoms bonded together via a double bond. It is non-polar because the electronegativity of oxygen is the same, so the electrons are shared equally between the atoms, resulting in a non-polar covalent bond. Additionally, oxygen is a small molecule compared to the others listed, such as glucose, water, and benzene, which are larger and have different structures that result in polar or partially polar properties.