What causes water molecules to be attracted to each other?

A. Polar covalent bonds inside each water molecule

B. Hydrogen bonds inside each water molecule

C. Ionic bonds between water molecules

D. Nonpolar covalent bonds between water molecules

This polarity makes water molecules attracted to each other. The oxygen-hydrogen bond in the alcohol molecule is also polar. But, the carbon hydrogen bonds in the rest of the alcohol molecule are nonpolar. In these bonds, the electrons are shared more or less evenly.