1. Which is correct?
  2. Pick the correct sentence:
  3. Which one of these is right?
  4. Which one of these is correct?
  5. Pick the correct one:
  6. Which one of these is correct?
  7. Only one of these is right. Which one?
  8. Pick the correct one:
  9. Which one of these is right?
  10. Which one of these is correct?