Janey had a bowl of hot soup for lunch. The soup was so hot she decided to put it in the refrigerator for a few minutes to cool it. What happened to cool the soup so that Janey could eat it?
A. The heat moved from the soup to the cold air in the refrigerator.
B. The cold in the fridge moved into the hot soup
C. No heat or cold moved out of or into the soup. It just cooled off.
Answer: (explain which answer you chose in 2-3 sentences - why is that answer correct)