What is the bond between hydrogen and oxygen in a water molecule?

The answer to this is A. A polar covalent bond is present in the water. This is a type of bond wherein the different electrons are closer to the oxygen nucleus as compared to the hydrogen nucleus. What is a polar covalent bond in the first place?

This is known to be an unstable type of bond as the electrons are shared between atoms in an unequal manner. A nonpolar covalent bond is composed of bonds that have the same number of electrons. Take note that this can occur in two similar atoms or two completely different atoms.