in which part of the wave are the particles of the medium closer together?\nrarefactions\ncompressions\nsolid…

Brief Explanations:

In a wave, compressions are the regions where particles of the medium are pushed closer together. Rarefactions are regions where particles are spread out. Solids and liquids are states of matter, not parts of a wave related to particle - closeness in this context.

Answer:

B. compressions