When a liquid is moved from one container to another, the most accurate response is:
The shape will change.
Liquids have a definite volume but take the shape of their container. The other statements are not correct in this context. The volume of the liquid remains the same (assuming no spillage or evaporation), the distance between particles generally does not significantly change, and while the particles may have slightly more freedom to move when the liquid changes shape, this is not the primary focus of the action of transferring it.