The Expansion of the Carolingian Empire Under Charlemagne

The expansion of the Carolingian Empire under Charlemagne

A) was carried out with the largest army in history up to its time.
B) was most successful against the German tribes to the east.
C) resulted in the quick destruction of the Saxons.
D) resulted in the conquest of all of Europe except for Italy.
E) succeeded in capturing most of Spain from the Moors.