The diagram below represents the particle arrangement of a substance in three states of matter: XXX, YYY, and ZZZ.

Which option correctly names the phase transition indicated by the arrow, and describes the change in density of the substance during this transition?
Sublimation, accompanied by a significant decrease in density
Deposition, accompanied by a significant decrease in density
Deposition, accompanied by a significant increase in density
Sublimation, accompanied by a significant increase in density