We attempted to improve some of the quiz questions but somehow the answer section still had the letters for the previous questions.
When that was brought to our attention we made the corrections in the current version (19). If you purchased printed Version 14 or15, please make the following changes/corrections to your copy. The version number appears on the second page.
If you purchased the e-book version simply delete it from your library and download the updated version (19).
All currently available versions are correct (Barns&Noble, Amazon, iTunes, Smashwords)