There are three boxes: one contains only apples, one contains only oranges, and one contains both apples and oranges. Each box is labeled incorrectly. You can pick one fruit from one box. Which box should you choose to correctly label all the boxes?

Answer: C. The box labeled 'Apples and Oranges'
Choosing from the box labeled 'Apples and Oranges' will reveal the true contents, allowing you to correctly label all boxes based on the incorrect labels.