Well, one could always lie down on one's hand. That's pretty easy, because you don't feel it's worth it to move your whole body to scratch your nose or something.
As for my answer, I chose A. I could be lifting a weight, uh...... doing something... down.... south.....
............or...... possibly playing a xylophone. Not to mention petting a dog, making a cake, tapping your finger to a song. It's all relative, and it's much more fun than staring up at the ceiling.
