Which statement about charlemagne's achievements is not true?

a. he was a king of saxons which resisted the popo's efforts to spread christianity throughout gaul.

b. he waged war against the lombards and the moors and greatly expanded the territory of his empire.

c. he established schools and supported monasteries in their efforts to preserve learning.

d. he was crowned the first emperor of the holy roman empire by popo leo lll in a lavish.