This is a question with answer options. Goal: Cool off the house

Which of the following methods is more reasonable for accomplishing this goal?

Available options:
A). 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.;
B). 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.;...I think the answer is
B).