In a park, there are three friends - Alice, Bob, and Carol. Alice hides a red ball behind a tree while Bob is watching. Then, they both leave the area to buy ice cream. While they're away, Carol finds the red ball and moves it under a bench. Later, she leaves to join her friends at the ice cream stand. Unbeknownst to them all, a dog comes by and takes the red ball to its owner. When Alice, Bob, and Carol return to the park, what will each of them think about the location of the red ball? Provide a brief response.
Alice will likely think that the red ball is still behind the tree because that is where she hid it before she left to buy ice cream. She is unaware of any changes that occurred in her absence.

Bob, who observed Alice hiding the ball, will also expect the red ball to be behind the tree for the same reason as Alice. As far as he knows, the last location of the ball was where Alice left it.

Carol, having moved the ball from behind the tree to under a bench, will think the red ball is under the bench. She does not know about the dog taking the ball because this happened after she left.

None of them knows that the dog took the ball, so when they return and find the ball missing from both locations Alice and Carol last saw it, they will all be confused and will likely start looking for it or wondering what happened to it.