What Event in 1303 Led to the Significant Weakening of Papal

Multiple Choice

What event in 1303 led to the significant weakening of papal authority?

A) French royal agents attempted to capture Pope Boniface VIII and put him on trial.
B) Boniface VIII failed in his attempt to mediate a dispute between the English and French kings.
C) The papacy moved to Avignon, thereby cutting the popes off from their traditional base of support in Rome.
D) Boniface XIII agreed to submit himself to the authority of kings and lords.