Final answer:
Charlemagne's greatest accomplishments included uniting much of Western Europe, promoting education and culture through the Carolingian Renaissance, and creating a strong centralized government. The Catholic Church supported him by providing religious legitimacy and administrative assistance. option (A)
Step-by-step explanation:
Charlemagne's greatest accomplishments included uniting much of Western Europe, promoting education and culture through the Carolingian Renaissance, and creating a strong centralized government.The Catholic Church supported him by providing religious legitimacy and administrative assistance.
Under Charlemagne, there was a revival of interest in ancient writings and in proper Latin. He gathered scholars from all of Europe and sponsored the education of priests and the creation of libraries. His efforts to reform Church training and education are referred to by historians as the "Carolingian Renaissance."