Explanation:

When a solid melts to form a liquid, there are several changes that occur in its properties. Let us discuss each of them in detail and understand why the correct answer is option D.

Compressibility Increases:
- Compressibility is a measure of how much a substance can be compressed or squeezed.
- In solids, the particles are tightly packed and have a fixed position, which makes them rigid.
- However, when a solid melts, the particles gain more freedom to move around.
- As a result, the interparticle distance increases, and the substance becomes less dense.
- This increases the compressibility of the substance.

Interparticle Forces of Attraction Decreases:
- In solids, the particles are held together by strong interparticle forces of attraction.
- These forces keep the particles in a fixed position, and the substance maintains its shape and volume.
- However, when a solid melts, the interparticle forces of attraction weaken.
- This allows the particles to move around freely and take the shape of the container.
- As a result, the substance loses its shape and volume.

Kinetic Energy of the Particles Increases:
- Kinetic energy is the energy possessed by a substance due to the movement of its particles.
- In solids, the particles have a low kinetic energy, and their movement is restricted.
- However, when a solid melts, the particles gain more energy and start moving more freely.
- This increases the kinetic energy of the particles.

Conclusion:
- As we can see, when a solid melts to form a liquid, several changes occur in its properties.
- The compressibility increases, the interparticle forces of attraction decrease, and the kinetic energy of the particles increases.
- Therefore, the correct answer is option D (all of these).

The correct answer is option D because when the solid converts into liquids all these changes took place. Hope it will help you!!!!