Answer: B. Liquid particles are close together (giving liquids a definite volume) but free to slide past one another (so liquids take the shape of their container).
A is wrong: liquids don't have a fixed shape — that describes a solid. C is wrong: liquids are disordered, with no regular structure; only solids have a regular lattice. D is wrong: vibration about a fixed position describes solid particles, not liquid ones.
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