The Granting of Citizenship to Nearly All Free Men in the Empire

The granting of citizenship to nearly all free men in the Empire in 212 B.C. undermined the Roman military because

A) provincials no longer had to join the army to attain citizenship.
B) citizen-soldiers could not be disciplined as harshly as conscripts.
C) the resulting drop in tax revenues devastated the army.
D) soldiers who became citizens demanded higher pay.
E) it empowered the local elites to assert their local interests.