There are three boxes. One contains apples, another contains oranges and the last one contains both apples and oranges. All three are known to be incorrectly labelled. If you are permitted to open just one box and then pull out and inspect only one fruit, which box would you open to determine the contents of all three boxes?
- The box labelled 'Apples'.
- The box labelled 'Apples and Oranges'.
- The box labelled 'Oranges'.
- Cannot be determined.