Final answer:
Paul of Tarsus wrote letters, known as the Pauline Epistles, to spread and teach Christianity to non-Jewish communities. These letters addressed theological issues, moral guidance, and church practices, contributing to the formation and spread of Christianity in the ancient world.
Step-by-step explanation:
Paul of Tarsus, also known as Saint Paul, wrote letters during the 1st century CE with the purpose of spreading and teaching the Christian faith to non-Jewish communities. These letters became an integral part of Christian teachings and are found in the New Testament of the Bible.
They are referred to as the Pauline Epistles and were written to various churches that Paul established or visited in the ancient Mediterranean world.
Through his epistles, Paul addressed theological issues, church practices, and moral guidance, aiding the formation and spread of Christianity. The correct response to the question is C. to teach non-Jewish churches how to practice Christianity.
Paul's writings have had a profound impact on Christian theology and practice, affirming the inclusion of Gentiles (non-Jews) within the Christian community and emphasizing faith in Jesus Christ as the path to salvation. His teachings helped shape Christian doctrine, particularly the concept of justification by faith.
The spread of Christianity to the Greco-Roman world through Paul's missionary work and his letters significantly contributed to the growth and establishment of Christian communities throughout the Roman Empire.