how did charlemagne attempt to maintain control over local authorities? group of answer choices he required the eldest sons of counts to live at court, where they could be watched and threatened if their fathers proved disloyal. he appointed officials who checked up on local authorities and held courts to address judicial and financial issues. he frequently traveled his domain, arriving at the homes of local officials without warning. he frequently rotated local officers among different localities to prevent them from forming bonds with the local people.