The correct option is:
D. Becket supported the authority of the Church over the monarchy.
Thomas Becket, the Archbishop of Canterbury, supported the belief that all clergy were not supposed to be treated under secular powers. According to him, the ecclesiastical hierarchy alone could judge them for their crimes, even those of secular nature. On the other hand, King Henry II of England held that this situation denied him of the powers to govern effectively, and furthermore undermine law and order in England.