Answer:
D.Physical Change
Step-by-step explanation:
Physical changes alter the size, shape, form or basically the matter state of a material....& they are reversible.
So over here, Changes of state are physical changes in matter coz they are reversible changes that do not change matter's chemical form or chemical properties.
For example, Ice- even though it changes to water when it melts, it can still change back to ice when it freezes. so the change is reversible.