If you compare ice and liquid water on the molecular level, you could say that
a) The molecules in liquid water are closer together
b) The molecules in ice are closer together
c) The molecules in ice slide past each other
d) The molecules in liquid water are smaller

intermolecular forces are the forces between molecules or particles.

there are two kinds of van der waals forces: weak london dispersion forces and stronger dipole-dipole forces.

in molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.

hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (h), covalently bound to a highly electronegative atom such as flourine (f), oxygen (o) and nitrogen (n) atoms.