William the Conqueror Was Politically Innovative in That He

William the Conqueror was politically innovative in that he:

A) claimed England in the name of the Roman papacy.
B) rewarded his Norman followers with cash payments rather than English land.
C) used the highly centralized English administrative authority combined with the feudal structures of France.
D) negotiated an advantageous peace agreement with King Harold of England without resorting to physical violence.
E) managed to retain the English crown while becoming the heir to the French throne.