THE ANSWER IS ..A ..The Catholic Church.
The name of the official
church of the early Christians was of course the Catholic Church, which has
never changed its name to this day. From the beginning, the Catholic Church
exercised its the authority to define doctrines and morals, to determine which books
should make up the Bible, and to preserve that correct interpretation the Holy
Bible
http://homepages.paradise.net.nz/mischedj/ct_apolosumm.html (A quick, quick summary of Catholic apologetics)
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