The correct answer is C) conquering Norse-held lands of Sweden and Denmark.
Charlemagne, during his reign, never prioritized and thus never had a special interest in conquering Norse-held lands of Sweden and Denmark. There were few reasons for this:
- Charlemagne was very concerned and focused on strengthening the Christianity.
- Militaristically he was predominantly focused on the upcoming strong Islamic Empire as well as the territories east of his Empire.
- He knew that going into war with the Norse will do him nothing good and that he will have big losses even if he wins thus weakening his army that he needed so much for territories that were not really worthy of it.
