A bug. You could eat a gummy worm while being alive :) lol. The wording of that question makes it seem like the person would be alive while eating a bug. But to actually answer that, I would pick the trash. Bugs are too disgusting and crawly. :|
When you do not want something, you throw it away. There are a lot of people (in faraway places, too) that eat animals, bugs included. Trash would more likely have germs or bacteria, bugs are small and have efficient waste processing systems, they're 'cleaner'. What kinda question is this anyhow?