On What Basis Did the Bishops of Rome Claim Authority

Multiple Choice

On what basis did the bishops of Rome claim authority over other bishops?

A) The bishopric of Rome was the first diocese created by Constantine.
B) The Nicene Creed was promulgated and approved in Rome.
C) The bishops of Rome were the best-educated churchmen.
D) The apostle Peter lived in Rome, and the bishops of Rome were his successors.