If a crystal of potassium permanganate is kept in a beaker containing water, the water becomes pink after some time. What characteristic of matter is inferred through this observation?

• A. Particles of solids break easily when pressure is applied on them.
• B. Particles of matter have space in between them.
• C. Particles of solids are tightly bound and they are rigid.
• D. Particles of liquid are loosely bound and they can flow.