Fiona placed a chocolate bar in the cupboard and then went for a walk. While she was out, Zane came into the kitchen and moved the chocolate from the cupboard to the fridge to prevent it from melting. Later, Theo entered the kitchen looking for snacks. He noticed the chocolate in the fridge but didn't feel like eating chocolate, so he left it there. After returning from her walk, Fiona wanted to eat her chocolate. Given that Fiona, Zane, and Theo are all in the kitchen together, and Fiona asks, "Who has seen my chocolate bar?" how should Zane and Theo respond?

Respond very briefly.
Zane is aware that he moved the chocolate from the cupboard to the fridge, while Theo saw the chocolate in the fridge but did not move it. Therefore, when Fiona asks who has seen her chocolate bar, Zane should respond that he not only saw it but also moved it to the fridge to keep it from melting. Theo should acknowledge that he saw it in the fridge as well when he was looking for snacks, even though he chose not to eat it. Fiona would understand from this information that Zane moved her chocolate, and Theo came across it afterwards.