To Manage His New Empire, Charlemagne Employed All of the Following

To manage his new empire, Charlemagne employed all of the following tactics of administration except ______________.

A) using missi dominici to inspect his kingdom
B) using counts given large land grants to do local administrative and military service in his name
C) centering his court in Aachen
D) encouraging the growth of literacy to enforce his authority
E) requiring local churchmen to announce and enforce his decrees