How Did the Change in the Agricultural Economy Affect the Balance

How did the change in the agricultural economy affect the balance of political power at the end of the Roman empire?

A) It gave political power to the landlords but weakened the hold of the emperor.
B) Small independent farmers were able to restore their political influence at the expense of the central government.
C) The emperors were able to establish almost absolute political control because of the failure of the large landholders.
D) The reduction in the number of slaves weakened the large landholders who lost political influence to both the central government and the small independent farmers.