Answer:
4)none of the above
Step-by-step explanation:
Rome was chosen as the center of Christianity because of its influence and power, as it was the seat of the Roman empire, the largest empire at the time. In addition, it had a large number of Christians, since Emperor Constantine, made Christianity an official religion. It was also the place where Peter and Paul were murdered in the name of Christianity which gave the city a tone of sanctity.
Constantinople, on the other hand, was chosen as the second seat of Christinalism because it had a strong proximity to the imperial court, which gave it political power and made it closer to the power of Rome.