thE Author stAtEs thAt tExtBooks writtEn in thE miDDlE pArt oF thE ninEtEEnth CEntury ______.
A．DEpArtED rADiCAlly in tonE AnD stylE From EArliEr tExtBooks
B．mEntionED For thE First timE thE vAluE oF liBErty
C．trEAtED trADitionAl CiviC virtuEs with EvEn grEAtEr rEvErEnCE
D．wErE CommissionED By govErnmEnt AgEnCiEs