Which of the Following Statements Concerning the Holy Roman Emperors

Which of the following statements concerning the Holy Roman emperors after the 10th century is most accurate?

A) They built upon the Carolingian foundations to establish the most centralized government found in the medieval West.
B) Building on a feudal framework rather than the Carolingian Germanic foundations, the Holy Roman Emperors created a strongly centralized government.
C) Discarding much of the former Carolingian Empire, the Holy Roman emperors reestablished a centralized government in northern Italy.
D) The rule of the Holy Roman emperors became increasingly hollow, because they did not build a solid monarchy from regional foundations.