human
Question: Base your answer on the information below and on your knowledge of science. A baseball strikes the roof of a car and dents it. The paint on the roof begins to crack and chip, exposing the metal. The exposed metal on the roof rusts, eventually causing a small hole in the roof. Which event is a chemical change?

Choices:
A) The baseball strikes the roof.
B) The roof of the car dents.
C) The paint cracks and chips.
D) The exposed metal rusts.
gpt
The correct answer is 3: The exposed metal rusts..