Answer
A. Polar
Work Step by Step
Some atoms attract more electrons than other electrons, which results in polar covalent bonds. For instance, in H2O, one atom of Oxygen (O) has 8 protons in the nucleus, but one atom of Hydrogen (H) only has one proton in the nucleus. This means that more electrons will be attracted to the positively charged protons in the oxygen atom than they will be to the hydrogen atoms, which results in a polar covalent bond.