whiCh oF thE Following woulD lEAst likEly hAvE BEEn thE suBjECt oF An EArly AmEriCAn tExtBook
A．BAsiC rulEs oF English grAmmAr.
B．thE AmEriCAn rEvolution.
C．pAtriotism AnD othEr CiviC virtuEs.
D．voCAtionAl EDuCAtion.