Answer:
A - Sublimation
B - Evaporation
C - Melting
Step-by-step explanation:
The state of change present in A is Sublimation. Dry Ice is the most common example of Sublimation of everyday life
The state of change present in B is evaporation. Boiling water into water vapor is something that anyone can see.
The state of change present in C is called Melting. Think of Ice melting into a pool of water as the ice heats up.