Here's a logic test: Jeremy is playing with a basketball in the gym. He rolls it across the gym floor to the equipment room and it easily rolls in. Later he is playing outside with the basketball with a friend. He rolls it across the grass, but it seems like it doesn't want to go over the rough surface. The basketball will generate less heat when it is rolled across the (A) gym floor (B) grass. Choose the answer between "gym floor" and "grass".
The answer to this question is:
gym floor