Which of the following is/are said to be existing in solid state?

All of these

The correct answer is option 4. All of these.

A rubber band changes shape under force and regains the same shape when the force is removed. If excessive force is applied, it breaks.

The shape of each individual sugar or salt crystal remains fixed, whether we take it in our hand, put it in a plate or in a jar.

A sponge has minute holes, in which air is trapped, when we press it, the air is expelled out and we are able to compress it.