The term living thing refers to things that are now or once were alive. A non-living thing is anything that was never alive. In order for something to be classified as living, it must grow and develop, use energy, reproduce, be made of cells, respond to its environment, and adapt.
I wasn't sure myself, but this seems like the only answer that sounds correct... I really hope this helps you! (If you would like an explanation, I can comment it below) xx
