The correct option is D Boiling of water
A substance usually exist in three physical states: solid, liquid and gas.
A can is initially in solid state. When it is crushed, its shape gets changed but the crushed can still remains in solid state.
Glass is initially in solid state. When it is broken, it gets divided into smaller pieces but each of those glass pieces remain in solid state.
Paper is initially in solid state. When it is torn into pieces, each paper piece remains in solid state.
When water is boiled, it changes its state from liquid to gas. So, among the given options, a change in state is observed only in boiling of water.