[After a few moments, trying her hardest to look concerned and not like she's screaming internally:]

...I know this is hard, but we need to know who gave you that food. Nothing bad is going to happen to them, I promise, but we need to make sure they don't do anything to hurt anybody else.

You'll be doing something really amazing for all of us if you answer, okay? It'll be easy. Just nod or shake your head.