Which of the following best describes the relationship between particle size and surface area to volume ratio?

The correct option is Smaller particles have a higher surface area to volume ratio. This answer is correct because it matches the approved learning objective to (chemistry only) Use simple cube models to relate size changes to surface area to volume ratio in the subtopic Sizes of particles and their properties.

The correct option is Smaller particles have a higher surface area to volume ratio. Smaller particles have a higher surface area to volume ratio is correct because it directly supports the approved learning objective to (chemistry only) Use simple cube models to relate size changes to surface area to volume ratio. This belongs to the subtopic Sizes of particles and their properties within Bulk and surface properties of matter including nanoparticles (chemistry only), so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Sizes of particles and their properties.