Question

which box best represents the particles in a gas? a d c b

Explanation:

In a gas, particles are far apart and move freely. Box C shows particles that are spaced out, which is characteristic of gas particles. Box B likely represents a solid (particles closely packed in an orderly manner). Box A and D may represent liquids (particles closer than gas but not as orderly as solid, but D seems more dense - like a liquid or even a solid - and A also not spaced out enough compared to gas).

Answer:

C.