Please choose the correct solution to the question: Cool off the house

Solution1: If you don't have a fan, you can continue to just open and close the door causing a slight breeze each time you open it, thus drawing cool air into the home.

Solution2: If the temperature outside is cooler than inside, you put a fan in a window and draw the cool air in to lower the temperature.

Answer format: solution1/solution2
Answer: solution2