What is happening to the molecules in this material as it goes from solid to liquid to gas?

(1 point)
Responses
A. They are slowing down because they have less kinetic energy.
B. They are going faster because they have less kinetic energy.
C.They are going faster because they have more kinetic energy.
D.They are slowing down because they have more kinetic energy.

C. They are going faster because they have more kinetic energy.