16. Cassandra notices that when she breathes on a cool window, the water vapor in her breath forms liquid water. What happens to turn the water vapor in her breath into liquid water?
A. Heat is added to the water vapor from the surrounding air.
B. The temperature of the water vapor increases as it leaves her body,
C. The water molecules become more spread apart as they touch the window.
D. Heat leaves the water vapor as it touches the cool window.