Answer :
Final answer:
The early authority of the Church was the archbishop of Rome, and local Christian churches focused on building their presence in areas of influence and population.
Explanation:
The first authority of the Church in the early centuries of Christianity was the archbishop of Rome, also known as the pope. Initially, each local Christian church aimed to establish its presence by adhering to the guidance provided by bishops on where to build churches, targeting areas with a significant indigenous population and influence.
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