Anna is drinking a glass of water in her kitchen. The water is too warm for Anna so she decides to make it colder by adding ice. Which statement describes why the ice cubes will melt?
A. Liquid water is reacting with solid water to absorb energy.
B. Water is evaporating from the surface of the water.
C. Slow-moving molecules move out of the ice.
D. Heat from the water moves into the ice.