What happens as a result of the kinetic energy of the particles in a liquid being comparable with the intermolecular attractions between the particles? The particles do not move enough to change positions, so the liquid is not compressible.
The particles move enough that they separate from one another and take the shape of their container.
The particles do not move enough, so they are fixed in place, and the liquid has a fixed volume.
The particles move enough that they are not fixed in place, and the liquid can flow.