If the Appeal to a Supernatural Source of Legitimation Enhanced

If the appeal to a supernatural source of legitimation enhanced the absolute authority of the ruler, what was its chief drawback?

A) It also strengthened the class of priests who came to dominate the royal courts
B) It established that the supreme political authority was granted by the ruler?s vassals
C) It tied the Zhou monarchs to an increasingly conservative religion in the face of aggressive demands for religious reform
D) It implied that rulers who failed in their duties had lost their heavenly justification and could be overthrown